Marryum Kahloon is of counsel in the New York office of Gibson Dunn. She is a member of the Firm’s International Arbitration Practice Group.

Marryum has extensive experience in international arbitration and public international law disputes. She has experience in a wide range of cross-border disputes including investor-State arbitration and international commercial arbitration. Marryum has experience advising clients on cases under arbitration rules including the ICSID, ICSID AF, UNCITRAL, HKIAC, SCC, ICC, AAA, and SIAC Rules. In addition, she has advised on cases before both the International Court Justice and the European Court of Human Rights.

Her pro bono practice focuses on advising clients on issues of public international law and international human rights law. Her experience includes drafting and submitting petitions to United Nations organs, working with international criminal tribunals, advising on treaty negotiations, and supporting non-governmental organizations with research and strategy.

Marryum has been recognized by The Best Lawyers in America for her work in Alternative Dispute Resolution and Commerical Litigation.

Marryum graduated with an LLM from Columbia Law School, where she was a James Kent Scholar, a Fulbright Scholar, and recipient of the Edwin Parker Prize for excellence in the study of international law. She earned her Bachelor of Laws degree, summa cum laude, from Bond University, where she was a Vice Chancellor’s Scholar. Prior to joining the Firm, Marryum acquired experience in international arbitration with international law firms in Paris, Shanghai, and Sydney. She was also the judicial clerk to the Honorable Margaret McMurdo AC, President of the Court of Appeal of Queensland.

She is admitted to practice in the State of New York and in Queensland, Australia.

Veronica Goodson is of counsel in the Litigation Department of the Washington, D.C. office of Gibson Dunn, with a focus on environmental regulation and litigation. Her experience includes assisting companies in enforcement proceedings before state and federal regulators, counseling clients on self-reporting under the EPA Audit Policy, developing compliance plans, and managing internal investigations and litigation. Veronica has worked with companies to assess compliance and defend enforcement actions and litigation involving a variety of environmental programs, including the Clean Air Act, the Toxic Substances Control Act (TSCA), the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), the Resource Conservation and Recovery Act (RCRA), and the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA/Superfund). In addition to her experience with federal programs, Veronica has helped clients navigate compliance and enforcement interactions with state environmental regulators, particularly in California.

Representative experience includes:

  • Represented Mercedes-Benz in an investigation relating to compliance with Clean Air Act requirements governing emissions after-treatment and in related settlement of civil claims with the U.S. Department of Justice, the U.S. Environmental Protection Agency, the California Attorney General, the California Air Resources Board, and U.S. Customs and Border Protection. United States v. Daimler AG et al. (D.D.C. 2020) & California v. Daimler AG (D.D.C. 2020).
  • Defended upstream oil and gas company in an enforcement action by the United States and the State of New Mexico relating to emissions from the company’s production facilities. The consent decree resolving the case contained one of the first Supplemental Environmental Projects approved by U.S. DOJ and EPA since the policy was reintroduced under the Biden Administration. The vast majority of money committed under the consent decree went directly to improved operations and projects that benefitted the environment and local communities through reduced emissions. United States & New Mexico Environment Department v. Matador Production Company (D.N.M. 2023).
  • Advising automobile manufacturers on a variety of regulatory compliance issues, including on-board diagnostics (OBD), substances of concern (e.g., TSCA), emission-related warranty and defects issues, and emerging issues related to electric vehicles—including range testing, ZEV credits, and warranty.
  • Advising companies across industries—including in chemical manufacturing, applied research, and upstream oil and gas—regarding self-disclosures under the EPA Audit Policy.

In addition, Veronica maintains an active pro bono practice on LGBTQ issues. During contested FOIA litigation on behalf of an LGBTQ advocacy organization, she helped secure the release of documents regarding a government agency’s revocation of anti-discrimination policies that protected transgender individuals and pregnant people seeking healthcare. In addition to obtaining the documents, Veronica successfully advocated for an award of attorneys’ fees and costs under FOIA’s “prevailing party” provision. Veronica also works with LGBTQ asylum seekers through the firm’s pro bono program.

Veronica graduated with high honors from The George Washington University Law School and was elected to the Order of the Coif. She served as a Notes Editor of the George Washington Law Review and a Dean’s Fellow legal research and writing instructor. Veronica received her Bachelor of Arts magna cum laude from Texas A&M University.

From 2009 to 2015, including while attending law school, she worked for a U.S. Intelligence Community component. From 2014 to 2015, Veronica was a special assistant to the component’s chief information officer, responsible for coordinating strategic information technology projects.

She is admitted to practice law in California and the District of Columbia.

John Curran is of counsel in the New York office of Gibson Dunn. He is a member of the firm’s Transactional Department and a member of the firm’s Executive Compensation and Employee Benefits Practice Group. His practices focuses on all aspects of executive compensation and employee benefits, including tax, ERISA, accounting, corporate, and securities law aspects of equity and other incentive compensation plans, qualified and nonqualified retirement and deferred compensation plans and executive employment and severance arrangements, including in connection with complex domestic and international business transactions. Prior to joining Gibson Dunn, John was a corporate associate in the Executive Compensation Group at an international law firm in New York, where he advised clients on equity-based incentive compensation, employment, severance plans and other executive compensation arrangements.

John graduated summa cum laude from Brooklyn Law School in 2017. He earned a Bachelor of Arts degree in History from Loyola University Maryland in 2007.

He is admitted to practice law in the State of New York.

 

Selected representative experience:*

  • Patterson-UTI Energy’s $5.4 billion merger with NexTier Oilfield Solutions, simultaneously with its $780 million acquisition of Ulterra Drilling Technologies
  • SilverBow Resources on its $2.1 billion sale to Crescent Energy
  • Merck on its $1.3 billion acquisition of publicly-traded Imago Biosciences
  • Kimberly-Clark on its $640 million sale of its global Personal Protective Equipment business to Ansell Limited
  • Coterra Energy in its $3.95 billion acquisition of Franklin Mountain Energy and Avant Natural Resources
  • Diversified Energy in its $1.275 billion acquisition of Maverick Natural Resources, a portfolio company of EIG Global Energy Partners
  • Special Committee of the Board of Directors of Atlas Corp. in its $10.9 billion take-private transaction
  • Eaton Corporation in its $1.3 billion acquisition of Fibrebond Corporation
  • Juniper Capital in the sale of its upstream Rocky Mountain portfolio companies to Amplify Energy
  • PAR Technology Corporation in various acquisitions and sales, including its sale of PAR Government Systems Corporation to Booz Allen Hamilton
  • Clarivate Plc in its:
    • $6.8 billion combination with CPA Global
    • Clarivate’s $5.3 billion acquisition of ProQuest
    • $950 million acquisition of Decision Resources Group
  • Payoneer’s $3.3 billion combination with FTAC Olympus Acquisition
  • Sterling Equities and the New York Mets on the sale of the New York Mets Major League Baseball franchise
  • Veritas Capital in various acquisitions and sales, including its:
    • $10.5 billion acquisition of Cotivi with KKR
    • $3.1 billion carve-out of the Wood Mackenzie business from Verisk
    • Acquisition of Edifecs by Cotiviti
  • Elliott Management in its:
    • $7.1 billion take private acquisition of Syneos Health, Inc., a fully integrated biopharmaceutical solutions organization, as part of a private investment consortium also consisting of Patient Square Capital and Veritas Capital
    • €1.2 billion acquisition of Associazione Calcio Milan (“AC Milan”) by RedBird Capital Partners
  • Aurora Capital Partners in its:
    • acquisition of Universal Pure Holdings, LLC, a leading provider of high pressure processing and related food safety and technical services
    • acquisition of GenServe, a market-leading independent provider of backup power solutions for commercial, industrial and critical infrastructure applications
  • CenterOak Partners in various acquisitions and sales
  • The Chernin Group in its majority investment in BiggerPockets, a leading educational platform providing access to real estate investing

Includes matters handled prior to joining Gibson Dunn.

Elizabeth A. Case is of counsel in the New York office of Gibson Dunn. She practices with the Firm’s Real Estate Department and has been recognized as a Best Lawyers: Ones to Watch in America™ in the area of Real Estate Law.

Liz represents clients in a broad range of complex commercial real estate transactions, with specific focus on borrower side financings, acquisitions and dispositions, development projects, joint ventures, and leasing, across all asset classes and deal sizes.

Liz earned her Juris Doctor in 2013 from Northwestern Pritzker School of Law. She graduated magna cum laude from Barnard College in 2008, with a Bachelor of Arts in Urban Studies, where she earned Department Honors.

Liz is admitted to practice in the State of New York.

Justin Accomando is of counsel in the Washington, D.C. office of Gibson Dunn. He practices in the firm’s Litigation Department and has experience representing clients in white collar criminal defense, compliance, government investigations, and government contracting. He has represented clients in both internal investigations and before the U.S. Department of Justice, U.S. Securities and Exchange Commission, U.S. Environmental Protection Agency, and the Armed Services Board of Contract Appeals.

Justin was recently recommended by The Legal 500 for his work in Government Contracts (2025).

Prior to joining the firm, Justin was a submarine officer in the United States Navy. He was trained in the Navy’s nuclear propulsion program and is certified as a nuclear engineering officer. He served aboard a fast-attack submarine and made two operational overseas deployments, leading a watch team and serving as assistant engineer. Justin also spent two years as an instructor in History at the Naval Academy before attending law school. While in law school, he interned in the Office of the White House Counsel, principally working for the National Security Staff legal team.

He graduated from the Yale Law School, where he was a Senior Editor of the Yale Journal on Regulation and the Yale Journal of International Law. He received a Bachelor of Science Degree in History, with honors and distinction, from the United States Naval Academy, where he was awarded a FitzGerald Scholarship to study at Oxford University and the Sons of the American Revolution Prize Sword. At Oxford, Justin earned a Master of Philosophy Degree in Economic and Social History.

Justin is admitted to practice law in Maryland and the District of Columbia.

Griffin Connolly is a litigation associate in the San Francisco office of Gibson, Dunn & Crutcher LLP.

He received his J.D. from Columbia Law School in 2025. While in law school, Griffin won the Haft Foundation First-Year Brief Prize, awarded to the first-year student with the best brief in the class-wide moot court competition. He served as a senior editor of the Columbia Law Review, earned academic Honors all three years, and won two Dean’s Cups as a member of Columbia Law School’s basketball team.

Prior to attending law school, Griffin was a journalist in Washington, D.C., where he covered Congress. His reporting focused primarily on congressional investigations.

Griffin is admitted to practice law in California.

Nicole Martínez is an associate attorney in the New York Office of Gibson Dunn and a member of the firm’s International Trade and Transnational Litigation Practice Groups.

Nicole’s practice focuses on navigating economic sanctions, export controls, and other foreign investment and supply chain regimes, as well as matters of public international law. Prior to joining the Firm, Nicole clerked at the Inter-American Court of Human Rights, where she focused on the implications of corporate immunities granted to arms manufacturers on transnational harms and adherence to international legal norms. At her clerkship, Nicole performed all her duties in Spanish.

Nicole received her law degree from Georgetown in 2023, where she co-published research on anti-corruption systems in Latin America for the Georgetown Americas Institute under the supervision of Sean Hagan, and externed for the Military Commissions Defense Organization (“Guantanamo Bay Defense Team”). Nicole maintains an active pro bono practice advising clients on issues of public international law, international human rights, and international criminal law. Prior to law school, Nicole worked in the cryptocurrency space for four years, first as a venture capital analyst and then in business intelligence and strategic operations for Chainalysis, a leading cryptocurrency compliance and investigations software company that bridges the gaps between industry, regulators, and law enforcement, globally.

Nicole speaks Spanish fluently and has a working knowledge of Portuguese.

David B. Tye is an associate in the Washington, D.C., office of Gibson Dunn. He practices in the firm’s Litigation Department.

Before joining Gibson Dunn, David clerked for Judge Andrew L. Brasher on the United States Court of Appeals for the Eleventh Circuit, and Judge Matthew J. Kacsmaryk on the United States District Court for the Northern District of Texas.

David received his law degree from Harvard Law School, cum laude, where he was a Senior Editor on the Harvard Journal of Law & Public Policy. He received his undergraduate degree from North Carolina State University, summa cum laude with valedictorian honors.

David is admitted to practice law in the District of Columbia.

Steve Pet is an associate in the Washington, D.C. office of Gibson Dunn and a member of the firm’s Antitrust and Competition Practice Group.

He advises clients on all aspects of antitrust law, with a focus on merger and conduct investigations before the Federal Trade Commission, the Department of Justice, and state attorneys general. Steve also represents clients in complex private and government antitrust litigation, and has significant experience litigating and counseling on Robinson-Patman Act matters. His experience spans a broad range of industries, including healthcare, pharmaceuticals, consumer products, energy, satellite communications, and technology. Steve is recognized in Best Lawyers: Ones to Watch® in America for Litigation – Antitrust.

An active leader in the antitrust bar, Steve serves as Vice Chair of the ABA Antitrust Section’s Mergers and Acquisitions Committee and has previously served as Vice Chair of the Agriculture and Food Committee and the U.S. Comments & Policy Committee. Before law school, he spent three years as an Honors Paralegal in the FTC’s Bureau of Competition, working at both the staff level and in the Bureau Director’s Office on major enforcement matters, including the FTC’s successful challenge to the proposed $3.5 billion Sysco–U.S. Foods merger.

Steve received his law degree from the University of Virginia School of Law, where he graduated Order of the Coif and served on the Virginia Law Review. Steve earned a Bachelor of Arts degree summa cum laude from Hamilton College.

Representative matters include*

Merger Reviews and Government Antitrust Investigations

  • Represented Amazon in securing the FTC’s unconditional clearance of Amazon’s acquisition of One Medical
  • Represented Pioneer Natural Resources in securing the FTC’s clearance of ExxonMobil’s $64.5 billion acquisition of Pioneer, which created the largest oil and gas producer in the Permian Basin
  • Represented SES in securing unconditional clearance from DOJ and numerous other competition authorities of SES’s acquisition of Intelsat, a global satellite competitor
  • Represented Celgene in securing the FTC’s conditional approval of its $74 billion acquisition by Bristol-Myers Squibb
  • Represented Arch Resources in securing unconditional approval of its $5 billion dollar merger with Consol Energy to form Core Natural Resources
  • Represented DaVita in securing the FTC’s conditional approval of its acquisition of the University of Utah’s dialysis business
  • Represented Merck in securing global antitrust clearance for its acquisition of Prometheus Biosciences
  • Represented General Electric in its acquisition of BK Medical
  • Represented Zensho Holdings in its acquisition of Snowfox Group
  • Represented large technology company in FTC 6(b) study on non-reportable acquisitions, and global food producer in FTC 6(b) study on supply chain disruptions 

Antitrust Litigation

  • Represented PepsiCo in Robinson-Patman litigation brought by the FTC; the FTC voluntarily dismissed the case without conditions (S.D.N.Y.)
  • Representing Frito-Lay in putative class action alleging Robinson-Patman and state law claims (C.D. Cal.)
  • Representing Boehringer Ingelheim in antitrust class actions involving alleged monopolization based on FDA Orange-Book listings (D. Mass.)
  • Represented Arch Coal in its proposed joint venture with Peabody Energy, from initial investigation through Section Request and litigation against the FTC (E.D. Mo.)
  • Represented a generic pharmaceutical manufacturer in massive multi-district antitrust litigation brought by state attorneys general and putative private plaintiff classes (E.D. Pa.)

*Includes matters handled prior to joining Gibson Dunn

Steve is admitted to practice in the District of Columbia.

Alexander C. Meade is an associate in the Washington, D.C. office of Gibson Dunn. He practices in the firm’s Litigation Department.

Before joining Gibson Dunn, Alexander served as a Law Clerk to the Honorable Andrew L. Brasher of the U.S. Court of Appeals for the Eleventh Circuit and the Honorable Allison H. Eid of the U.S. Court of Appeals for the Tenth Circuit.

He received his law degree with Honors in 2022 from the University of Chicago Law School, where he served as an Online Editor of The University of Chicago Law Review and as the Managing Student Director of the Kirkland & Ellis Corporate Lab Clinic. In law school, Alexander also earned the Kirkland & Ellis Corporate Lab Award of Excellence and Pro Bono Honors. Before law school, he spent three years as a Paralegal at the U.S. Department of Justice Criminal Division’s Fraud Section, where he worked on securities and financial fraud investigations. He received his undergraduate degree cum laude with distinction in Philosophy, Politics, and Economics from the University of Pennsylvania in 2016.

Alexander is a member of the bars of the District of Columbia and Texas, and he is admitted to practice before the U.S. Courts of Appeals for the Tenth and Eleventh Circuits.

Samuel Eckman is a partner in the Los Angeles office of Gibson Dunn. He is a member of the firm’s Appellate and Constitutional Law and Class Actions Practice Groups.

Samuel has been recognized in Best Lawyers: Ones to Watch® in America for Appellate Practice (2022-2024), and by Benchmark Litigation as a “Future Star” (2025).

Samuel’s recent representations include:

  • Obtaining a unanimous victory from the United States Supreme Court in an action seeking over $20 billion in damages. Comcast Corp. v. National Association of African American-Owned Media, 589 U.S. 327 (2020).
  • Winning a landmark ruling in the United States Supreme Court upholding the City of Grants Pass, Oregon’s public-camping laws in a case of widespread importance for local governments across the country grappling with the homelessness crisis. City of Grants Pass, Oregon v. Johnson, 144 S.Ct. 2202 (2024).
  • Persuading the California Supreme Court to unanimously reverse a Court of Appeal decision limiting the authority of trial courts to impose monetary sanctions for discovery misconduct. City of Los Angeles v. PricewaterhouseCoopers, LLP, 17 Cal.5th 46 (2024).
  • Slashing a $350 million punitive damages award by 95% on post-trial motions in the Central District of California, and winning complete vacatur on appeal to the Ninth Circuit.  Bahamas Surgery Center, LLC v. Kimberly-Clark Corp., 2018 WL 11274489 (C.D. Cal. 2018); Bahamas Surgery Center, LLC v. Kimberly-Clark Corp., 820 F. App’x 563 (9th Cir. 2020).
  • Reducing a $30 million punitive damages award by 67% to $10 million on post-trial motions in a wrongful-termination case in the Los Angeles Superior Court. 
  • Securing precedent-setting decisions in the Third and Ninth Circuits holding that rideshare drivers are not exempt from arbitration under the Federal Arbitration Act’s transportation-worker exemption. Capriole v. Uber Techs., Inc., 7 F.4th 854 (9th Cir. 2021); Singh v. Uber Techs., Inc., 67 F.4th 550 (2023).

Before joining the firm, he served as a law clerk to the Honorable Antonin Scalia, Associate Justice of the U.S. Supreme Court, and the Honorable Alex Kozinski, then-Chief Judge of the U.S. Court of Appeals for the Ninth Circuit.

Samuel graduated with high honors from The University of Chicago Law School in 2013. While there, he served as editor-in-chief of The University of Chicago Law Review, and was selected as a Kirkland & Ellis Scholar and as a member of the Order of the Coif. He also was awarded a John M. Olin Student Fellowship in Law and Economics, and a Bradley Family Foundation Fellowship.

Miguel is a partner in the Washington, D.C. office of Gibson Dunn and Co-Chair of the firm’s Judgment and Arbitral Award Enforcement Practice Group. Miguel has represented clients before federal and state courts throughout the country in a broad range of matters. He has argued 24 cases before the United States Supreme Court and briefed many others. He has also argued dozens of appeals in the lower federal and state courts.

Best Lawyers® recognized Miguel as a 2024 “Lawyer of the Year” in the categories of Appellate Practice and Intellectual Property Litigation. Miguel was recognized by Benchmark Litigation as a 2020 U.S. Appellate Litigation “Star.” In 2014, The American Lawyer named him a “Litigator of the Year,” praising his “brains and tenacity” and noting he is the lawyer to call for “a tough, potentially unwinnable case.” Since 2014, Chambers has consistently named him as one of a handful of attorneys that ranked in the top tier among the nation’s leading appellate lawyers. Chambers noted that “clients are impressed by his intellect and ability,” with clients saying, “He’s got a quick, sharp intellect and is a very effective advocate,” and “He’s razor-sharp in his thinking and has a real flair in his writing.” The Atlantic described his oral argument in a 2014 high-profile separation-of-powers case as “one of the most dazzling arguments the marble chamber has heard in many years.”

Miguel has been named among Lawdragon’s 2026 “500 Leading Litigators in America” and acknowledged as one of Lawdragon’s “500 Leading Lawyers in America” for multiple years. In 2024, Miguel was ranked by Legal 500 US for his work in Dispute Resolution, recognized by Who’s Who Legal 2023 in the category of Commercial Litigation, and featured in the Washingtonian Magazine as one of “Washington’s top legal talent” in the Supreme Court category. Miguel was selected by his peers for inclusion in the 2022 edition of The Best Lawyers in America® in the area of Appellate Law, in addition to previous recognition by the publication in the specialties of Bet-the-Company Litigation, Commercial Litigation, Criminal Defense: White Collar, Intellectual Property Litigation, and Regulatory Enforcement Litigation in the areas of SEC, Telecom, and Energy. In 2017, he was elected as a member of the American Law Institute.

Representative Supreme Court matters include:

  • In Comcast Corp. v. Nat. Assn. African American-Owned Media (2020), he persuaded the Court to hold that 42 U.S.C. 1981 requires plaintiffs to prove but-for causation, and to reject a “motivating factor” test borrowed from Title VII of the Civil Rights Act of 1964
  • In Coventry Health v. Nevils (2017), he persuaded the Court to hold that insurance contracts entered by the Office of Personnel Management pursuant to the Federal Health Benefits Act of 1959 may validly preempt state and local anti-subrogation and anti-reimbursement laws.
  • In National Labor Relations Board v. Noel Canning (2014), he represented the Republican caucus of the United States Senate in successfully urging the invalidation of the President’s recess appointments to the National Labor Relation Board.
  • In Comcast Corp. v. Behrend (2013), he persuaded the Court to grant review of, and then reverse by a 5-4 vote, a certified antitrust class seeking $2.6 billion in damages.
  • In Black v. United States (2010), he represented media magnate Conrad M. Black in securing Court review and reversal of multiple convictions under the “honest services” provisions of the federal mail and wire fraud statutes. Based on his arguments, the Supreme Court significantly narrowed the scope of conduct that can be prosecuted as “honest services” fraud.
  • In Laboratory Corporation of America Holdings v. Metabolite Laboratories, Inc. (2006), he persuaded the Court to leave undisturbed a Federal Circuit ruling upholding the validity of a two-step process patent setting forth a method for diagnosing vitamin deficiencies.
  • In Northern Insurance Co. of New York v. Chatham County (2006), he persuaded the Court to rule unanimously that counties are not entitled to invoke sovereign immunity in admiralty actions.
  • In Aetna v. Davila Health (2004), he persuaded the Court to rule unanimously that federal law preempts state laws that give patients the right to sue managed care organizations.
  • In Strickler v. Greene (1999), he argued on behalf of a death row inmate pro bono in a challenge to his conviction and sentence.

In 2011, the Supreme Court appointed Miguel to brief and argue two criminal cases—Dorsey v. United States and Hill v. United States—in which the Solicitor General declined to defend the judgments of the court of appeals. Miguel was also part of the team that successfully presented then-Governor Bush’s position to the Supreme Court in Bush v. Gore (2000). Other cases that Miguel handled in the Supreme Court include Granholm v. Heald (2005) (dormant Commerce Clause and Twenty-First Amendment), Vermont Agency of Natural Resources v. United States ex rel. Stevens (2000) (False Claims Act, Article III standing and Eleventh Amendment immunity), Old Chief v. United States (1997) (rules of evidence), United States v. Mezzanatto (1995) (evidence and plea bargaining), United States v. Robertson (1995) (constitutional limits on Congress’s Commerce Clause powers), Citizens Bank of Maryland v. Strumpf (1995) (bankruptcy law), and NOW, Inc. v. Scheidler (1994) (RICO).

Recent Court of Appeals matters include:

  • Since 2017, Miguel has represented Crystallex International in district court and appellate proceedings to enforce Crystallex’s $1.4-billion arbitral award against Venezuela; in those proceedings, Miguel successfully persuaded the district court to issue (and the Third Circuit to affirm) that Venezuela’s national oil company, Petroleos de Venezuela, S.A. (PDVSA), is the alter ego of the Republic of Venezuela, thus permitting Crystallex to attach PDVSA’s U.S. assets – and in particular the shares of the Delaware parent of CITGO Petroleum–to satisfy Venezuela’s debt to Crystallex. Reporting on the 2019 four-hour oral argument in Venezuela’s first of many attempted appeals, The Financial Times noted that among the lawyers for “Venezuela, PDVSA and a motley of creditors”, Miguel “was the best litigator in the room.” A judicial auction of those assets is expected in the summer of 2024.
  • In Standing Rock Sioux Tribe v. U.S. Army Corps of Engineers, Miguel represented the owners of the Dakota Access Pipeline in challenges to the construction and, later, to the operation of the pipeline that were brought under various federal statutes by the Standing Rock Sioux Tribe and others; in 2021, he ultimately persuaded the D.C. Circuit to reverse an injunction that had ordered the pipeline shut down over purported violations of the National Environmental Policy Act.
  • In Wit v. United Behavioral Health (2022), Miguel persuaded the Ninth Circuit to reverse class actions judgments entered after trial under the Employee Retirement Income Security Act of 1974.
  • In Owner-Operated Independent Drivers Assn. v. Holcomb (2021), Miguel persuaded the district court and the Seventh Circuit to dismiss with prejudice a complaint challenging increased tolls on state-owned roads as discriminatory under the Constitution’s Commerce Clause.
  • In Atchafalaya Basinkeeper v. U.S. Army Corps of Engineers (2018), Miguel persuaded the Fifth Circuit to grant an emergency stay of, and then reverse, an injunction under the Clean Water Act and the National Environmental Policy Act preventing construction of the Bayou Bridge Pipeline through southern Louisiana.
  • In Total Gas & Power North America v. FERC (2017), Miguel represented a major energy producer in statutory and constitutional challenges to the authority of administrative agencies to withdraw from Article III courts the adjudication of claims for money penalties.
  • In Coquina Invs. V. TD Bank, N.A., 760 F.3d 1300 (11th Cir. 2014), persuaded the court to uphold a jury verdict and sanctions in fraud case arising out of a Ponzi scheme.
  • In FERC v. JPMorgan Ventures Energy Corp. (D.C. Cir. 2013), argued two appeals on discovery issues arising out of FERC’s investigation of alleged market manipulation; the investigation was closed by settlement before decisions were issued.
  • In Espenscheid v. DirectSat USA, LLC, 705 F.3d 770 (2013), persuaded the court to reject class certification and collective-action treatment for overtime claims.
  • In Comcast Cable Communications, LLC v. FCC, 717 F.3d 982 (D.C. Cir. 2013), persuaded the court to reverse an FCC decision in a program-carriage case.
  • In Georgia Pacific Consumer Prods. v. von Drehle, 710 F.3d 527 (4th Cir. 2013), persuaded the court to reverse a judgement notwithstanding verdict in a trademark infringement case.
  • In Fox v. FCC, 613 F.3d 317 (2d Cir. 2010), persuaded the court to invalidate the FCC’s indecency policy under vagueness doctrine.

Other matters:

  • Since 2008, Miguel represented Philip Morris and its parent Altria in complex litigation in federal and state courts, including the defense and appeal of the U.S. government’s long-running RICO case against the tobacco industry, tort cases brought in Florida state and federal courts under Engle v. Liggett Group (2006), and affirmative litigation against federal and state governments on preemption, first amendment and administrative-law grounds.
  • In 2014, Miguel represented a large financial institution in a tax dispute with the Commonwealth of Puerto Rico and was part of a team that prevailed in a bench trial.
  • In 2013, Miguel represented the CEO of PokerStars, the largest online poker cardroom in the world, in settling civil-forfeiture claims by the U.S. Attorney for the Southern District of New York.
  • From 2004 to 2009, Miguel defended Cessna in federal court litigation arising out of the largest airline disaster in Italian history, ultimately securing dismissal of most of the claims.
  • From 1999 to 2005, Miguel was a lead attorney for Aetna in dozens of class actions against the managed care industry that the Judicial Panel for Multidistrict Litigation consolidated in the United States District Court for the Southern District of Florida (MDL No. 1334).
  • In addition, Miguel has extensive experience litigating against administrative agencies, including the Federal Communications Commission, the Federal Energy Regulatory Commission, and the Food and Drug Administration.

Miguel joined Gibson Dunn in 1997, after serving for five years as Assistant to the Solicitor General of the United States. He previously served as Assistant U.S. Attorney and Deputy Chief of the Appellate Section, U.S. Attorney’s Office, Southern District of New York. In those capacities, Miguel represented the government in numerous jury trials and in many appeals before the U.S. Court of Appeals for the Second Circuit.

Miguel is a Trustee of the Supreme Court Historical Society. He was formerly a member of the Board of Visitors of Harvard Law School.

Miguel served as a law clerk to the Honorable Anthony M. Kennedy in the U.S. Supreme Court from 1988 to 1989 and to the Honorable Amalya L. Kearse in the U.S. Court of Appeals for the Second Circuit from 1986 to 1987. He received a J.D. degree magna cum laude in 1986 from Harvard Law School, where he was editor of the Harvard Law Review. Miguel graduated with an A.B. degree magna cum laude and Phi Beta Kappa in 1983 from Columbia College, New York. He is fluent in Spanish and proficient in French.

Andrew Ebrahem is an associate in the Washington, D.C. office of Gibson Dunn. He practices in the firm’s Litigation Department, and is a member of the firm’s Appellate and Constitutional Law, Labor and Employment, and Administrative Law and Regulatory Practice Groups.

Before joining the firm, Andrew served as a law clerk for the Honorable Judge Allison J. Rushing of the U.S. Court of Appeals for the Fourth Circuit and for the Honorable Judge John B. Nalbandian of the U.S. Court of Appeals for the Sixth Circuit.

Andrew graduated from the University of Virginia School of Law, where he was elected to the Order of the Coif. While in law school, Andrew was an Articles Editor of the Virginia Law Review, served as a Legal Writing Fellow, and externed for the Honorable Judge Rossie D. Alston Jr. of the U.S. District Court for the Eastern District of Virginia. Andrew received a Bachelor of Arts with high distinction in Philosophy from the University of Virginia, where he was awarded most outstanding thesis of the year. While in college, Andrew interned at the Federal Trade Commission, Office of the General Counsel.

Andrew is admitted to practice law in the Commonwealth of Virginia and the District of Columbia.

Natalie Dygert is an associate in the Orange County office of Gibson Dunn. She is a member of the firm’s Litigation Department, and practices in the firm’s Class Actions, Antitrust & Competition, and Labor & Employment Practice Groups. She represents clients in a wide range of high-stakes complex commercial cases, with an emphasis on pharmaceutical antitrust and competition, intellectual property, and employment matters.

Natalie recently rejoined the firm after serving as a law clerk to the Honorable Percy Anderson of the United States District Court for the Central District of California. She graduated from UCLA, where she was a member of the Moot Court Honors Board. Natalie holds a bachelor of Arts degree in Psychology and Criminology from the University of California, Irvine.

Thomas H. Dupree Jr. is Co-Partner in Charge of the Washington, D.C. office of Gibson Dunn, Co-Chair of the firm’s nationwide Appellate and Constitutional Law Practice Group, and a member of the firm’s litigation department.

Tom is an experienced trial and appellate advocate. He has argued more than 100 appeals in the federal courts, including in all 13 circuits as well as the United States Supreme Court. He has represented clients throughout the country in a wide variety of trial and appellate matters, including cases involving punitive damages, class actions, product liability, arbitration, intellectual property, employment, and constitutional challenges to federal and state statutes. Chambers and Partners has named Tom one of the leading appellate lawyers in the United States every year since 2012, and The Legal 500 has similarly recognized Tom for years as one of the nation’s “leading lawyers.”

Tom previously served in the United States Department of Justice. He was appointed Deputy Assistant Attorney General for the Civil Division, and later became the Principal Deputy Assistant Attorney General. In that capacity, he served as the division’s second-in-command, overseeing the more than 900 lawyers in the Civil Appellate, Commercial, Federal Programs and Torts branches, as well as the Office of Immigration Litigation and the Office of Consumer Litigation. Tom was responsible for managing many of the government’s most significant cases involving regulatory, commercial, constitutional and national security matters on behalf of virtually all of the federal agencies, the White House, and senior federal officials. Before being named the division’s top deputy, Tom ran its largest litigating branch, managing a staff of 280 lawyers.

Legal Times has called Tom “no stranger to high-profile work.” Among other things, he played a substantial role in the successful representation of George W. Bush before the United States Supreme Court in Bush v. Gore, and represented New England Patriots quarterback Tom Brady in challenging his “Deflategate” suspension.

Tom argued and won, by a unanimous 9-0 vote, a landmark personal jurisdiction case in the United States Supreme Court, Daimler AG v. Bauman. For this achievement, American Lawyer magazine named him Litigator of the Week, noting that he “won over both the liberal and conservative wings of the court.”

In 2021, American Lawyer again named Tom its Litigator of the Week. This time he was recognized for winning a high-profile appeal in the midst of the chaos enveloping the U.S. Capitol on January 6.

Other matters Tom has handled include:

  • Persuading the Supreme Court to grant a petition for certiorari on behalf of a major automobile manufacturer and to vacate a $290 million punitive damage award, which had been the largest personal injury award ever affirmed on appeal in United States history.
  • Winning an appeal on behalf of Jerry and Jessica Seinfeld in the United States Court of Appeals for the Second Circuit in a copyright and trademark case involving the New York Times #1 bestselling book Deceptively Delicious.
  • Winning multiple cases for Churchill Downs concerning the eligibility of horses to race in the Kentucky Derby.
  • Winning an appeal for singer-songwriter Bob Dylan in a multimillion-dollar breach of contract case.
  • Successfully representing Facebook CEO Mark Zuckerberg in a federal lawsuit arising from the plaintiff’s fraudulent claim of a significant ownership stake in Facebook.
  • Successfully representing superagent Scott Boras in confidential baseball-related arbitrations.

Tom appears frequently on national television as a legal analyst. He is a regular guest on Fox News Channel and CNN. He has also appeared on CBS Evening News, NBC Nightly News, PBS NewsHour, ABC World News Tonight, and Good Morning America, as well as on MS NOW, CNBC, Bloomberg, Court TV, and C-Span. He has been quoted in numerous print publications, including the New York Times, Wall Street Journal, Washington Post, and others, discussing legal issues and developments. In addition, Tom has testified before Congress on constitutional and separation-of-powers issues, including the President’s authority to act through executive order.

Tom graduated cum laude from Williams College, and with Honors from the University of Chicago Law School, where he served as an Editor of the University of Chicago Law Review. After law school, he clerked for the Honorable Jerry E. Smith of the United States Court of Appeals for the Fifth Circuit.

Austin M. Donohue is an associate in the Washington, D.C. office of Gibson Dunn.

In 2021 she received her juris doctor, magna cum laude and Order of the Coif, from Georgetown University Law Center. While at Georgetown, Donohue served as a Staff Editor for the Georgetown Journal of Gender and the Law, a Law Fellow for Georgetown’s first year Legal Research and Writing Program, and as a Research Assistant. she was also a member of Georgetown’s Appellate Courts Immersion Clinic, and served as an intern in the U.S. Department of Justice Civil Fraud Division.

Austin earned her undergraduate degree, summa cum laude, from the George Washington University in 2014. Prior to attending law school, from 2014-2018, she worked in the General Counsel’s office of the Biotechnology Innovation Organization.

She is admitted to practice in the District of Columbia.

Nat Deacon is an associate in the Washington, D.C. office of Gibson Dunn. He practices in the firm’s Litigation Department.

Nat graduated magna cum laude from the Georgetown University Law Center, where he served as an Articles Editor of the Georgetown Law Journal and as Law Fellow for the first-year Legal Research & Writing class. Nat was also a Student Attorney in Georgetown’s Appellate Courts Immersion Clinic, where he helped brief cases before the Fourth Circuit, Eleventh Circuit, and DC Court of Appeals. 

Nat received his undergraduate degree from Bowdoin College, where he was a member of the school’s football team. Before attending law school, he worked as a data analyst at a consultancy.

He is admitted to practice law in the District of Columbia.

Carlo Felizardo is of counsel in the Washington, DC office of Gibson, Dunn & Crutcher. He is a member of the firm’s FDA and Health Care practice.

Carlo has extensive experience advising companies involved in the development, manufacturing, marketing, and distribution of U.S. Food and Drug Administration (FDA)-regulated products. He assists clients in interpreting, implementing, and ensuring compliance with FDA requirements across a wide array of product classes, including drugs, medical devices, and biological products.

Carlo also works with various entities involved in life sciences transactions to understand and mitigate potential regulatory risks. He has extensive experience in conducting FDA regulatory due diligence and drafting key disclosure and transactional language.

Carlo earned his law degree, cum laude, in 2016 from Northwestern University. He received his bachelor’s degree with high honors in political science and sociology and anthropology from Swarthmore College in 2011, and his master’s degree in sociology from Northwestern University in 2013.

Carlo is admitted to practice in Illinois and the District of Columbia.

Prior to joining Gibson Dunn, Carlo was an associate in the FDA practice at another global firm.

Shereen Zaki is an associate in the London office of Gibson Dunn and a member of the Antitrust and Competition and Litigation Practice Groups. She is currently on secondment.

She has experience of complex, high-value competition and commercial litigation. A recent highlight from her previous firm has been assisting with an appeal in the Supreme Court in relation to interchange fees.

Shereen has gained experience in many areas of commercial litigation, including complex financial claims, civil fraud claims, misrepresentation claims, breach of warrant of authority claims, rectification, and general contractual disputes.

In particular, she has experience of EU competition follow-on claims brought against addressees of European Commission infringement decisions, and in particular, large group actions.

Shereen has gained exposure to complex international disputes across a broad range of industries including the automotive, energy, finance, retail, steel, and technology sectors.

Representative experience:*

  • Multibillion pound litigation brought against Visa in relation to interchange fees in the credit and debit sectors, which culminated in a 12-week trial in the High Court
  • Proceedings brought on behalf of a global electronics manufacturer arising from the CRT/LCD European Commission decisions
  • International civil fraud proceedings in the High Court
  • Proceedings in relation to a breach of warrant of authority and misrepresentation claim
  • Proceedings brought on behalf of a European power company in connection with losses resulting from the high voltage power cables cartel

*Some of these representations occurred prior to Shereen’s association with Gibson Dunn.

David Debold joined the Washington, D.C. office of Gibson Dunn in 2003. He practices in the Litigation Department, and is a member of the firm’s Appellate and Constitutional Law, Securities Litigation and White Collar Defense and Investigations Practice Groups.

Since joining the firm, David has represented numerous individuals and businesses in a wide variety of white collar, regulatory enforcement, and appellate matters.

David’s white collar and regulatory matters include: major SEC enforcement actions and investigations involving accounting irregularities, the Foreign Corrupt Practices Act, and books and records issues; large-scale corporate internal investigations for Fortune 50 companies (including independent investigations for audit committees of boards of directors); investigations and regulatory actions by FINRA and the PCAOB; and federal criminal investigations and prosecutions involving a number of federal offenses in the environmental, tax, mortgage loan fraud, securities fraud, stock options backdating, money laundering, and antitrust areas.

David’s appellate practice includes federal and state court appeals across a broad spectrum of civil and criminal issues; petitions for writs of certiorari filed in the United States Supreme Court in both civil and criminal cases; and merits appeals in the United States Supreme Court. David’s appellate experience includes more than 85 oral arguments in the United States Courts of Appeals and the briefing of more than 200 appeals.

Representative matters handled by David include:

  • United States v. Conrad M. Black. David co-wrote the successful petition for writ of certiorari and merits briefs that Gibson Dunn filed in the United States Supreme Court on behalf of media entrepreneur Conrad Black. The Supreme Court unanimously reversed a court of appeals judgment that had upheld Mr. Black’s mail fraud and obstruction convictions. David was lead counsel at Mr. Black’s resentencing on remand in Chicago, and he helped achieve a three-year sentence reduction for Mr. Black.
  • United States v. Paul S. Minor. David represented Paul Minor, a highly successful lawyer in Mississippi, at his resentencing on honest-services fraud convictions. David persuaded the trial judge to reduce Mr. Minor’s sentence by three years, even after the judge determined there had been no change in the applicable Sentencing Guidelines range.
  • FINRA Dept. of Enforcement v. Stephen H. Brinck. David played a major role in defending the former head of the fixed income desk at a broker-dealer against fraud charges. Following a 2-week evidentiary hearing in San Francisco and post-hearing briefing, the hearing panel cleared Mr. Brinck of the sole charge levied against him.
  • Comcast v. FCC. David supervised the briefing among four law firms, as well as the oral argument preparation, in a successful petition to the United States Court of Appeals for the D.C. Circuit. The Court, in rejecting an FCC regulation that limited the size of cable services providers, took the rare step of vacating the rule in its entirety rather than remanding for further proceedings.
  • United States v. McWane Pipe et al. David took the lead in drafting appellate briefs in the Eleventh Circuit challenging several convictions under the Clean Water Act. The Court reversed all convictions on all counts of all four defendants, and David and his colleagues successfully opposed the Solicitor General’s petition for Supreme Court review of the decision.
  • David successfully negotiated a non-prosecution agreement for a company that, at the time Gibson Dunn was hired, faced imminent indictment in Michigan for environmental crimes. The agreement avoided prosecution of any individuals and dispensed with appointment of a monitor and other costly remediation measures initially proposed by the EPA. David also successfully negotiated the termination of the 3-year agreement after only 6 months.
  • In appellate pro bono matters, David took over for a pro se defendant and won a rare remand from the court of appeals for an evidentiary hearing on his claim of racial discrimination in jury selection. He also has taken the lead role in multiple amicus briefs for national criminal defense and immigration advocacy groups before the United States Supreme Court, including a 6-3 victory in Vartelas v. Holder (2012), which protected the travel rights of lawful permanent resident aliens.

David also has significant experience in advising companies on how to create or update their compliance programs to comply with requirements mandated by the United States Sentencing Commission and other authorities. David was Special Counsel to the Sentencing Commission when the guidelines governing corporations took effect, and as Chair of the Commission’s Practitioners Advisory Group he has testified before the Commission on these and other issues related to the enforcement of federal criminal law.

Prior to joining the firm, David served as an Assistant United States Attorney in Detroit, Michigan, where he had a distinguished career in government service as a member of the office’s Criminal Trial and Appellate Divisions. In his years as a trial lawyer for that office, he directed more than 100 grand jury investigations and brought to trial over a dozen felony cases, including a multi-million dollar construction loan fraud, a large-scale investment scam and the attempted murder of a federal agent.

David has lectured frequently at national conferences on criminal law and appellate issues. He served as chair of the United States Sentencing Commission’s Practitioners Advisory Group, which provides input from private practitioners on a variety of sentencing-related issues including proposed amendments to the Federal Sentencing Guidelines and legislative initiatives. He is editor of the ABA’s two-volume treatise, “Practice Under the Federal Sentencing Guidelines,” a comprehensive sentencing resource. He also has written numerous articles on developments in federal sentencing law at the Supreme Court level, as well as updates on Department of Justice policies in the investigation and prosecution of corporations and other organizations. David was recently recognized by Benchmark Litigation as “Litigation Star.” David has also been recognized by The Best Lawyers in America® since 2023 in the categories of Securities Litigation and White-Collar: Criminal Defense.

David graduated magna cum laude from Harvard Law School in 1985, and served as a law clerk to the Honorable Cornelia G. Kennedy of the United States Court of Appeals for the Sixth Circuit.