Job Title Category: Partner

  • Julie H. McConnell

    Julie H. McConnell

    People

    Julie H. McConnell

    Partner

    Washington, DC

    Areas of focus

    Julie H. McConnell focuses her practice on representing clients in complex litigation before federal, state and local agencies, courts and courts of appeals.

    Julie defends companies in individual, multi-plaintiff and class action litigation in disputes involving Title VII of the Civil Rights Act, the Americans with Disabilities Act (ADA), the Fair Labor Standards Act and other federal and state employment and accessibility statutes and tort claims. Julie also represents employers in litigation involving disclosure of trade secrets, violation of noncompetition agreements and whistleblower disputes. Additionally, Julie advocates for employers before the National Labor Relations Board in union organizing campaigns and unfair labor practice cases.

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    Results
    • Prevailed at bench trial and on appeal to the US Court of Appeals for the Eleventh Circuit on behalf of one of the world’s leading mass media and entertainment conglomerates in landmark case involving claims under the Americans with Disabilities Act
    • Obtained summary judgment on behalf of Fortune 100 company on dozens of individual common-law tort and disability discrimination claims brought under Title III of the ADA and California state law
    • Represented government contractor and obtained dismissal without leave to amend of whistleblower protection claim under Virginia law

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    Recognitions
    • Best Lawyers: Ones to Watch in America, Litigation – Labor and Employment, 2026
    • Legal 500 US 2023
    Capabilities and industries
    Regional markets
    Community
    Credentials
    Education
    • American University Washington College of Law, JD, cum laude
    • Vanderbilt University, BA, magna cum laude
    Admissions
    • District of Columbia
    • Virginia
    Courts/Agencies
    • US District Court for the District of Columbia
    • US District Court for the Eastern District of Virginia
  • Alex Cheng-Yi Lee

    Alex Cheng-Yi Lee

    People

    Alex Cheng-Yi Lee

    Partner

    Washington, DC

    Areas of focus

    Alex Cheng-Yi Lee focuses his practice on US and international tax planning and transactions involving US and non-US multinational companies, private equity funds, and entrepreneurial families.

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    Results
    • Represented Leo Messi in connection with the formation of the Más+ by Messi sports beverage business, an international joint venture between Mr. Messi and Mark Anthony Presents
    • Represented Krispy Kreme in the sale of its majority ownership stake of Insomnia Cookies
    • Represented Caribou Coffee in the transaction to license its brand in the consumer packaged goods and food service channels to JDE Peet’s

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    Recognitions
    Capabilities and industries
    Regional markets
    Community
    Credentials
    Education
    • Georgetown University Law Center, LLM, Taxation
    • Georgetown University Law Center, JD, BS
    • National Taiwan University, BA
    Admissions
    • District of Columbia
    Languages
    • English
    • Chinese (Mandarin)
  • Robert Lamkin

    Robert Lamkin

    People

    Robert Lamkin

    Partner

    Washington, DC

    Areas of focus

    Rob Lamkin represents energy trading firms, electric power generators, renewables project developers and other energy industry participants in energy trading and energy regulatory matters, including matters relating to compliance with CFTC regulation of swaps under the Dodd-Frank Act.

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    Results
    • Represented an energy trading and marketing entity in negotiating structured energy trading transactions, including lien-based credit structures and complex hedging arrangements including heat rate call option and revenue put option transactions
    • Represented wind farm developer in negotiation of proxy revenue and proxy generation swap transactions and negotiation of lien-based structure in connection with same
    • Represented a power producer in the development and negotiation of an energy management agreement governing a significant number of electric generation facilities

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    Recognitions
    • The Best Lawyers in America, Energy Law, 2023-2024
    • The Legal 500, Recommended, 2015-2016, 2021, 2023
    Capabilities and industries
    Regional markets
    Community
    Credentials
    Education
    • Catholic University of America Columbus School of Law, JD
    • Stanford University, BA
    Admissions
    • District of Columbia
    • Maryland
    • New York
  • Christine Corkran Kretkowski

    Christine Corkran Kretkowski

    People

    Christine Corkran Kretkowski

    Partner

    Washington, DC

    Areas of focus

    Christine Corkran Kretkowski advises clients on strategic transactions, including mergers, acquisitions, divestitures and joint ventures. She also focuses her practice on large-scale global corporate reorganizations, assisting multinational clients prepare for future strategic transactions and in their post-acquisition integration strategies.

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    Results
    Recognitions
    • Legal 500 US, Recommended, 2021, 2024
    Capabilities and industries
    Regional markets
    Community
    • Franklin & Marshall College Alumni Association Board of Directors, 2012 to 2018; president, 2016 to 2017
    Credentials
    Education
    • George Washington University Law School, with honors
    • Franklin & Marshall College, BA, magna cum laude
    Admissions
    • District of Columbia
    • Maryland
  • Stephen P. Kranz

    Stephen P. Kranz

    People

    Stephen P. Kranz

    Partner

    Washington, DC

    Areas of focus

    Stephen (Steve) P. Kranz is a tax lawyer who solves tax problems differently. Over the course of his extensive career, Steve has acquired specific skills and developed a unique approach that helps clients develop and implement holistic solutions to all varieties of tax problems. He combines strategic thinking with effective skills for the courtroom, the statehouse and the conference room.

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    Results
    • On behalf of Microsoft Corporation, won the pivotal case in the District of Columbia challenging the jurisdiction’s transfer pricing audit methodology
    • On behalf of a Firm client, obtained a complete settlement concession from the District of Columbia resulting in zero additional tax due on a substantial transfer pricing assessment

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    Recognitions
    • Legal 500 US, Recommended, 2018, 2022 and 2024–2025
    • Thomson Reuters, Stand-out Lawyer – independently rated lawyers, 2023
    • International Tax Review, World Tax, 2016-2025
    • Recognized by Netchoice as the “Tax Master”
    • State Tax Notes 2011, Top 10 Tax Lawyers and Top 10 individuals who influenced tax policy and practice
    Capabilities and industries
    Regional markets
    Community
    • Business Advisory Council, Streamlined Sales Tax Governing Board, former president
    • District of Columbia Bar, State and Tax Committee, member and former chair
    • Tax Foundation, board of directors
    Credentials
    Education
    • Drake University Law School, JD, with honors, Order of the Coif
    • University of North Dakota, BA, magna cum laude
    Admissions
    • District of Columbia
    • Minnesota
    • North Dakota
  • Marie-Muriel Barthelet

    Marie-Muriel Barthelet

    People

    Marie-Muriel Barthelet

    Partner
    Areas of focus

    Marie-Muriel Barthelet advises founders and managers, companies, and private equity funds on all aspects of their corporate law issues related to national and international mergers and acquisitions operations, as well as leveraged buyouts and other private equity transactions.

    Prior to joining the firm, Marie-Muriel was an associate at another leading international law firm.

    Results
    Recognitions
    • The Best Lawyers in France, Best Lawyer, Private Equity Law, 2025 & 2026
    Capabilities and industries
    Regional markets
    Community
    Credentials
    Education
    • Paris-Panthéon-Assas University, Master’s, Business Law
    • Paris 1 Panthéon-Sorbonne University, Master’s, English and American Business Law
    • University of Oxford/University Paris II Panthéon-Assas
    Admissions
    • Paris
    Languages
    • French
    • English
  • Raymond A. Jacobsen, Jr.

    Raymond A. Jacobsen, Jr.

    People

    Raymond A. Jacobsen , Jr.

    Partner

    Washington, DC

    Areas of focus

    Raymond (Ray) A. Jacobsen, Jr., advises clients on mergers, acquisitions, and complex antitrust litigation. He has significant experience in the defense, medical devices, biotech, consumer product, energy, and healthcare industries.

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    Results
    • Represented Rochester General Health System and Unity Health System, successfully securing Federal Trade Commission (FTC) approval in the merger of two of the three hospitals in Rochester, New York
    • Defended Amgen in a monopolization case, defeating preliminary injunction seeking to enjoin a bundled discount arrangement on pharmaceuticals (Ortho Biotech v. Amgen (D.N.J.))

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    Recognitions
    • Global Competition Review, GCR 100, 2024-2026
    • Best Lawyers in America, Antitrust Law (2006-2027), Litigation – Antitrust, 2006-2027
    • Chambers USA, 2005-2026
    • Legal 500 US, Leading Lawyer in Antitrust – Merger Control, 2024-2025

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    Capabilities and industries
    Regional markets
    Community
    • American Bar Association
    Credentials
    Education
    • Georgetown University Law Center, JD
    • University of Delaware, BA, cum laude
    Admissions
    • District of Columbia
  • Marshall E. Jackson, Jr.

    Marshall E. Jackson, Jr.

    People

    Marshall E. Jackson , Jr.

    Partner

    Washington, DC

    Areas of focus

    Provides transactional and regulatory counseling to clients in the healthcare and life sciences industries 

    Represents investors and their portfolio companies on M&A, joint ventures, and strategic affiliations  

    Represents physician practices and other health organizations on corporate, regulatory compliance, and governance matters  

    Advises digital health and health tech clients working at the intersection of healthcare, software, analytics, technology, AI, and electronic data 

    Marshall E. Jackson, Jr., provides transactional and regulatory counseling to clients in the healthcare and life sciences industries. Drawing on his transactional background and extensive healthcare regulatory experience, he provides practical, comprehensive counsel on the complex strategic and operational issues facing healthcare and life sciences companies and their investors. 

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    “Marshall is a powerful quarterback and he was able to put together an amazing team to manage a complex and challenging situation. He is an incredible person to work with.” 

    Chambers USA

    “Marshall is amazing. He’s good at spotting issues and his client service is strong.”  

    Client feedback

    Ranked in

    Ranked in

    Thomson Reuters, Stand-Out Lawyer – independently rated lawyers

    Recognized in

    Recognized in

    Legal 500 US, Recommended

    Ranked in

    Ranked in

    The Best Lawyers: Ones to Watch in America, Healthcare Law, DC

    Results

    Transactions and affiliations 

    • Represented General Atlantic in several health care and health tech transactions, including its: 
      • $3 billion acquisition of TEAM Services Group, a national provider of personal care and household employment services across the United States 
      • Acquisition of Eventus WholeHealth, an integrated primary and behavioral healthcare delivery organization that provides medical services to patients in long-term care facilities 
      • Acquisition of Vi Labs, an enterprise data analytics platform  
      • Acquisition of Suvida Healthcare, a value-based primary care platform 

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    Recognitions
    • Chambers USA, 2026
    • Thomson Reuters, Stand-Out Lawyer – independently rated lawyers, 2026 
    • Legal 500 US, Recommended, 2022, 2024-2025 
    • The Best Lawyers: Ones to Watch in America, Healthcare Law, Washington, DC, 2022-2024 
    • Minority Corporate Counsel Association, Rising Star, 2023 
    • The National Law Journal, DC Rising Star, 2022 
    • The National Black Lawyers, Top 40 Under 40, 2019 
    • American Health Lawyers Association, Pro Bono Champion, 2014, 2015
    Capabilities and industries
    Regional markets
    Community
    • McDermott Will & Schulte, Digital Health & Health Tech Group, co-head 
    • American Health Lawyers Association, member 
    • American Bar Association, Health Law Section, member 
    • Nanci’s Gift, Inc., board member 
    Credentials
    Education
    • University of Maryland Francis King Carey School of Law, JD, Order of the Barristers
    • United States Military Academy, BS
    Admissions
    • District of Columbia
    • Maryland
    Courts/Agencies
    • US Court of Appeals for Veterans Claims
    Languages
    • English
  • Sarah P. Hogarth

    Sarah P. Hogarth

    People

    Sarah P. Hogarth

    Partner

    Washington, DC

    Areas of focus

    Sarah P. Hogarth is a member of the Firm’s Supreme Court & Appellate Litigation and Government & Regulatory Litigation practices. She briefs and argues appeals and critical motions, litigates affirmative cases challenging federal and state government action and advises on legal strategy and dispositive motions in trial courts or before administrative tribunals.

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    Results
    • Successfully defended the invalidation of a Puerto Rico law regulating the rates that Medicare Advantage plans must pay providers on federal preemption grounds (MMAPA v. Emanuelli-Hernandez (1st Cir.))
    • Won reversal of judgment dismissing Sherman Act Section 1 and Clayton Act Section 7 claims (Vasquez v. Indiana University Health, Inc. (7th Cir.))
    • Preserved dismissal of lawsuits asserting claims covered by the landmark settlement of more than 10,000 mass tort cases against the City of New York and private contractors following the 9/11 terrorist attack (In re World Trade Center Lower Manhattan Disaster Site Litig. (2d Cir.))
    • Won complete cross-appeal victory, securing reversal of district court order declining to enforce a settlement agreement (Serta Simmons Bedding LLC v. Casper Sleep Inc. (Fed. Cir.))
    • Preserved a complete jury verdict and multimillion-dollar award (US Conference of Mayors v. Great-West Life & Annuity (D.C. Cir.; D.D.C))

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    Recognitions
    • Best Lawyers: Ones to Watch in America, Appellate Practice, 2026-2027
    • Legal 500 US, Appellate: Courts of Appeals/Appellate: Supreme Courts, 2021 and 2023-2025
    • District of Columbia Courts, Capital Pro Bono Honor Roll, 2023
    • Super Lawyers Washington DC, Rising Star in Appellate, 2019-2020
    Capabilities and industries
    Regional markets
    Community
    • Law360, Appellate Editorial Advisory Board, 2024-2025
    Credentials
    Education
    • Notre Dame Law School, JD, summa cum laude
    • Michigan State University, BA, with honors
    Admissions
    • District of Columbia
    • Indiana
    • Maryland
    Courts/Agencies
    • US Court of Appeals for the First Circuit
    • US Court of Appeals for the Second Circuit
    • US Court of Appeals for the Third Circuit
    • US Court of Appeals for the Fourth Circuit
    • US Court of Appeals for the Fifth Circuit
    • US Court of Appeals for the Seventh Circuit
    • US Court of Appeals for the Eighth Circuit
    • US Court of Appeals for the Ninth Circuit
    • US Court of Appeals for the Tenth Circuit
    • US Court of Appeals for the District of Columbia Circuit
    • US Court of Appeals for the Federal Circuit
    • US Court of Appeals for Veterans Claims
    • US District Court for the District of Columbia
    • US District Court for the District of Maryland
    • US District Court for the Northern District of Indiana
    • US District Court for the Southern District of Indiana
  • Laurent Ayache

    Laurent Ayache

    People

    Laurent Ayache

    Partner
    Areas of focus

    Laurent Ayache is co-head of the Regulatory Practice in the Firm’s Paris office. He advises clients on public, administrative and regulatory law, including issues in connection with competition and public-sector matters. He focuses his practice on government contracts (public procurements, public service concessions, public-private partnerships and government property leases), public corporations (governance, privatization and changes in status) and on antitrust and industry regulation issues. His practice also includes litigation related to regulated industries such as energy (electricity and gas), electronic communications, airports, transportation (railway, road and sea), public housing, drinking water and sanitization.

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    Results
    Recognitions
    • The Legal 500 EMEA, Recommended, 2022-2026
    • Chambers France, Public Law, 2026
    • The Best Lawyers in France, 2022-2026
    • Chambers Europe, France: Public Law, 2023-2024
    • IFLR1000, Project Development, M&A, 2022-2023
    Capabilities and industries
    Regional markets
    Community
    Credentials
    Education
    • Paris-Panthéon-Assas University, LLM (DESS), European Business Law
    • Paris 1 Panthéon-Sorbonne University, LLM (DESS), Public Economic Law
    Admissions
    • Paris
    Languages
    • French