Dmitriy Tishyevich focuses his practice on complex commercial litigation in federal and state courts. He has a particular emphasis on healthcare litigation, and has extensive experience representing clients in lawsuits and arbitrations involving claims payment, provider contracting, and ERISA and Sherman Act issues that arise in disputes between payors and healthcare providers. He has first-chaired two multi-week arbitration hearings, and has also second-chaired multiple federal trials and arbitrations. His other work includes antitrust, business tort matters, contract disputes, and product liability. In addition to healthcare work, Dmitriy also regularly represents clients in the pharmaceutical and private equity industries, among others.
- Represented a healthcare insurance company in multiple arbitrations filed by one of the largest for-profit hospital systems that alleged that insurer underpaid its contracted healthcare claims. First-chaired three multi-week arbitrations hearings and achieved a complete defense victory in the only arbitration to reach a judgment; leveraged favorable results to drive a global resolution.
- Represented a healthcare insurance company in a putative class action brought by substance abuse treatment facilities challenging the company’s reimbursement of out-of-network claims based on pricing supplied by a third-party vendor, including under antitrust and RICO theories. Successfully moved to dismiss the complaint in its entirety, including the antitrust claims with prejudice. Instead of amending their complaint, the facilities voluntarily dismissed.
- Represented a health insurance company against a group of hospitals claiming over ten million dollars in underpayments for emergency services under Florida statutory and common law. After significantly narrowing claims through Rule 12 motions, achieved a complete defense victory at summary judgment.
- Best Lawyers: Ones to Watch in America, Healthcare Law (2025-2027), Commercial Litigation, 2026-2027
- Harvard Law School, JD, cum laude
- University of California, Berkeley, BA, with high distinction, Honours
- New York
- California
- US Court of Appeals for the Second Circuit
- US Court of Appeals for the Third Circuit
- US Court of Appeals for the Fifth Circuit
- US Court of Appeals for the Seventh Circuit
- US Court of Appeals for the Eleventh Circuit

Sam Snider
Cross-border M&A
Joint ventures
Private placements
Strategic corporate transactions
Sam Snider is a partner in McDermott’s Atlanta office and serves as its managing partner, advising clients on mergers and acquisitions, joint ventures, and private placements.
His practice is notably cross-border, representing major global companies on single country and multi-jurisdictional transactions, including extensive experience in emerging market M&A and investments.
Before returning to private practice in 2017, he held senior in-house legal and compliance roles, including chief legal and compliance officer at a health information technology company and leader of the global M&A legal function for a FTSE 100 information and analytics business.
- Advised The Coca-Cola Company on multiple transactions, including its:
- $5.2 billion sale of Coca-Cola Beverages South Africa, Coca-Cola’s flagship African bottler with operations in 14 countries, to Coca-Cola Hellenic
- $125 million sale of Chi Ltd., the leading producer of ready to drink fruit juice and dairy products in Nigeria
- $1.4 billion sale of 40% of Hindustan Coca-Cola Holdings Ltd. to the Jubilant Bhartia Group
- $1.8 billion sale of its Philippines bottling business to a joint venture between Coca-Cola Europacific Partners and Aboitiz Equity
- $130 million sale of its Bangladeshi bottling business to Coca-Cola Icecek
- Chambers USA, Corporate/M&A, Band 2, 2021-2026
- Legal 500 US, Recommended, 2021-2023, 2025
- IFLR Africa Awards, Deal of the Year: Domestic finalist (CHI Limited), 2026
- DealMakers, South Africa Deal of the Year finalist (Coca-Cola Beverages Africa), 2026
- Asian Legal Business Philippine Law Awards, M&A Deal of the Year (Coca-Cola Beverages Philippines), 2024
- McDermott Will & Schulte Management Committee, member
- New York University School of Law, JD
- Vanderbilt University, BA, magna cum laude
- Georgia

Frank Layson
Frank Layson focuses his practice on mergers, acquisitions and joint ventures. He represents leading companies in a wide variety of cross-border transactions.
- Represented Coca-Cola Company in connection with the:
- Acquisition of Fairy Bottling Zambia, Ltd. (Zambia)*
- Acquisition of a majority interest in the non-alcohol ready-to-drink beverages business of Kgalagadi Beverages Ltd. (Botswana)*
- Acquisition of the on the non-alcohol beverages business of Zambian Breweries PLC (Zambia)*
- Acquisition of a majority interest in the non-alcohol ready to drink beverage business of Swaziland Beverages Ltd. (Eswatini)*
- Acquisition of a minority interest in the non-alcohol ready to drink beverages business of Maluti Mountain Brewery Limited (Lesotho)*
- Sale of Montevideo Refrescos S.R.L. (Uruguay) and Commercializadora y Productora de Bebidas Los Volcanes (Paraguay) to Coca-Cola FEMSA*
- Transition of Anheuser-Busch Inbev’s majority interest in Coca-Cola Bottling Africa*
- Acquisition of Coca-Cola Sabco (UAE) Limited and its subsidiaries Bottlers Nepal and Coca-Cola Beverages Sri Lanka*
- Acquisition of Coca-Cola Shanduka Beverages South Africa Proprietary Limited*
- Joint Venture with SAB Miller and Coca-Cola Sabco to form a bottling joint venture headquartered in South Africa*
- Acquisition of the non-alcoholic ready-to-drink beverage brands of SABMiller*
- Best Lawyers in America, Corporate Law, Mergers and Acquisitions Law, 2009-2027
- Chambers USA, Corporate/M&A, 2021-2026
- Legal 500 US, 2021
- University of Georgia, JD, magna cum laude
- Emory University, BA
- Georgia

Greg C. Berson
Greg C. Berson focuses his practice on mergers and acquisitions, private equity, venture capital, and strategic investments. He represents strategic and private equity buyers and sellers across a wide range of industries, with a significant focus in the sports, media, and entertainment industry. Greg also provides general corporate counseling to clients and portfolio companies regarding corporate governance and post-transaction integration matters.
- Represented multiple participants, including Mark Stevens and Sheryl Sokoloff, in the ownership group formed by the Khosla family to acquire the Seattle Seahawks, the reigning Super Bowl Champions, in a $9.612 billion transaction, the new record for an NFL franchise
- Represented Monumental Sports & Entertainment, led by founder and chairman Ted Leonsis, and owner of the Washington Capitals NHL Hockey team and the Washington Wizards NBA basketball team, in a strategic investment transaction with Arctos Partners
- Represented Aditya Mittal and the trustees of the Mittal family trusts as significant investors in the buying group led by William Chisholm to acquire the NBA’s Boston Celtics, the largest sale of a US professional sports team in history
- Represented Ilitch Gaming, a national gaming, hospitality, and entertainment platform, in its acquisition of its initial 50% stake in Ocean Casino Resort, a hotel, casino, and resort in Atlantic City, from Luxor Capital in 2021 and the buyout of Luxor Capital’s remaining 50% stake in 2026
- Represented an investor in a minority investment in the NFL’s San Francisco 49ers
- Law360, Rising Star in Sports & Betting, 2026
- District of Columbia Courts, Capital Pro Bono Honor Roll, 2023
- Georgetown University Law Center, JD
- Northeastern University, BS, Alpha Phi Sigma
- District of Columbia
- English
Craig Rasile
Craig Rasile focuses his practice on restructuring and insolvency matters, emphasizing bankruptcy, corporate restructuring, workouts, creditors’ rights and commercial litigation. He typically represents clients in the retail, health care, energy, telecommunications, gaming, transportation, logistics, franchise, manufacturing, REIT and financial institution industries.
- Chambers USA, Bankruptcy & Restructuring, 2003-2022
- The Best Lawyers in America, Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law; Litigation – Bankruptcy, 2005 – 2022
- The Legal 500 US 2021 and 2022, Restructuring (including bankruptcy): Corporate
- Who’s Who Legal, Insolvency & Restructuring, 2007, 2013 – 2016
- American Bar Foundation, fellow
- Florida Bar Foundation, fellow
- Florida Fiduciary Forum, Steering committee member
- University of Miami School of Law, JD, with honors
- Grinnell College, AB
- Florida
- New York
- US Court of Appeals for the Eleventh Circuit
- US District Court for the Southern District of Florida
- US District Court for the Middle District of Florida
- US District Court for the Southern District of New York
- US District Court for the Eastern District of New York

John Zukin
Leveraged buyouts
Joint ventures, restructurings, and recapitalizations
Private and public mergers and acquisitions
John Zukin focuses his practice on complex business transactions. He regularly represents private equity clients and strategic investors in mergers, acquisitions, divestitures, and a broad range of general corporate and governance matters.
John has experience across various industries, including healthcare, technology, life sciences, industrials, consumer and retail, and business services.
Ranked in
Best Lawyers: Ones to Watch in America 2026
Industrials and infrastructure
- Represented H.I.G. Capital in its:
- Acquisition of Premier Forge Group from Wynnchurch Capital
- Investment in Windows USA®
- Sale of Valtris Specialty Chemicals to SK Capital Partners
- Represented Arcline Investment Management in the acquisition of the Goodrich Hoist & Winch business from Collins Aerospace, an RTX Corporation business
- Represented Boyne Capital in its:
- Sale of McKee Utility Contractors to MasTec, Inc.
- Single-asset continuation fund transaction for Pilot Energy, anchored by New 2ND Capital as lead investor
- Represented CenterGate Capital in its acquisition of United Envelope from Palm Beach Capital
- Represented Astor Place Holdings in its:
- Acquisition of Technicorp International II, the parent company of Statek Corporation, Greenray Industries, and AdTech Ceramics
- Acquisition of Motion Sensors, Inc.
- Represented HCI Equity Partners in its sale of Summit Interconnect to Lindsay Goldberg
- Best Lawyers: Ones to Watch in America, Corporate Law, Leveraged Buyouts and Private Equity Law, Mergers and Acquisitions Law, 2026-2027
- Northwestern Pritzker School of Law, JD, cum laude
- Indiana University, BA
- Illinois
- English
April E. Weisbruch
April E. Weisbruch focuses her practice on intellectual property matters, particularly in managing large-scale IP litigation and counseling. She works with clients in wide-ranging technology sectors, including pharmaceuticals, software applications, medical devices, organic chemistry and ballistics.
- Secured a finding of validity of two patents for Juxtapid® on behalf of Aegerion Pharmaceuticals Inc., in response to a challenge brought by the Coalition for Affordable Drugs (Kyle Bass) at the PTAB (Coalition for Affordable Drugs VIII LLC v. Trustees of the University of Pennsylvania, IPR2015-01835 and IPR2015-01836 (PTAB))*
- Obtained finding of civil contempt, and $18 million in resultant damages, relating to competitor’s purported e-procurement software ‘design-around’ sold in violation of a permanent injunction implemented after a jury trial found the patents-in-suit to be valid and infringed (ePlus Inc. v. Lawson Software, 3:09-cv-620 (E.D.Va.))*
- Negotiated prompt and favorable settlement of patent troll litigation on behalf of client Essentra Components (Symbology Innovations LLC v. Essentra Components Inc., 1:19-cv-03613 (N.D.Ill.))*
- Best Lawyers: Ones to Watch in America, Litigation – Patent, Washington, DC, 2024-2025
- Legal 500 US, 2021
- Patexia, Top Hatch-Waxman Litigator, 2024
- Federal Circuit Bar Association, Hatch Waxman Subcommittee, Chair
- Federal Circuit Bar Association Hatch Waxman/BPCIA Sub-Committee, member
- Court of Federal Claims Bar Association, member
- American Intellectual Property Law Association, member
- Harvard Law School, JD, Biochemistry
- Furman University, BS
- District of Columbia
- Virginia
- US Patent and Trademark Office
- US Court of Federal Claims
- US Court of Appeals for the Federal Circuit
- US District Court for the Eastern District of Virginia
- Supreme Court of Virginia
- Superior Court of the District of Columbia

David Revcolevschi
David Revcolevschi focuses his practice on French and international securities offerings, mergers and acquisitions, and more generally on the securities and corporate law and corporate governance issues faced by publicly listed companies.
David has extensive experience in equity and equity-linked securities offerings, representing issuers, underwriters, and shareholders. He has notably advised on more than 35 IPO projects on Euronext Paris, Nasdaq, the Hong Kong Stock Exchange and the London Stock Exchange and numerous other securities issuances by companies operating in the life science (biotechnology, medical device), technology (software, hardware, telecom), airlines, aerospace, real estate, leisure and entertainment, chemicals, utilities and financial sectors.
Equity Capital Markets Transactions
- Advised Poxel (Biotech, France, Euronext Growth) on an equity-linked financing by Iris Capital in connection with the restructuring of its debt facility with IPF (2022)
- Advised Aelis Pharma (Biotech, France) on its IPO on Euronext Paris (2022)
- Advised GeNeuro (Biotech, Switzerland, Euronext Paris) on an international private placement of new shares (2022)
- Advised Acticor Biotech (Biotech, France) on its IPO on Euronext Growth Paris (2021)
- Advised Genkyotex (Biotech, France, Euronext Paris and Brussels) on the squeeze-out and public buyout (OPRO-RO) in cash and CVRs by Calliditas Therapeutics (Sweden, Stockholm and Nasdaq) (2021)
- Advised AMA Corporation (Augmented reality technology, France) on its IPO on Euronext Growth Paris (2021)
- Advised H.C.W. Wainwright, acting as placement agent, in connection with the issuance of shares with warrants (ABSA) by Pixium (Biotech, Euronext Growth Paris) (2021)
- Advised GeNeuro (Biotech, Switzerland, Euronext Paris) on an international private placement of new shares (2021)
- Advised H.C.W. Wainwright, acting as placement agent, in connection with the issuance of shares with warrants (ABSA) by Erytech (Biotech, Euronext Paris) (from May to November 2021)
- Best Lawyers in France, Capital Markets Law, 2010-2026
- The Legal 500 EMEA, Recommended Lawyer, 2008-2023
- IFLR1000, Capital Markets: Equity, M&A, 2008-2023
- Chambers Europe, 2006-2012, 2018
- Chambers Global, 2007-2012, 2018
- The Legal Media Group Expert Guides, Capital Markets 2008-2020
- Harvard Law School, Graduate Program
- Paris 1 Panthéon-Sorbonne University, Fulbright Scholar
- Paris 1 Panthéon-Sorbonne University, 1997-1998
- Paris 1 Panthéon-Sorbonne University
- Paris
- English
- French

Raminta Dereskeviciute
Raminta Dereskeviciute focuses her practice on product compliance, trade regulation (sanctions and export controls) and ESG. She has significant experience in advising on EU and UK chemical legislation (REACH), product safety and liability rules and frequently represents clients before the European Chemicals Agency Board of Appeal. Raminta also advises businesses on the implications Brexit has in relation to a range of regulatory compliance issues.
Raminta counsels clients on the EU and the UK sanctions regimes and export controls, including in higher risk jurisdictions such as Russia and Iran. Her experience covers the review and design of compliance programs, including giving training to client teams on controlled goods, prohibited jurisdictions, persons and activities. Raminta assists companies in liaising with regulators when assessing whether their activities are in breach of EU or UK sanctions regimes, or whether authorisations / licenses from the national authorities are appropriate. Raminta has participated as a chair and speaker on sanctions related panels at the Cambridge International Symposium on Economic Crime.
- Representing Hempel Metallurgical GmbH in the first ever data-sharing dispute before ECHA Board of Appeal*
- Representing Climax Molybdenum B.V. and members of Molybdenum Consortium before ECHA Board of Appeal in a dispute involving dossier compliance check and validity of an OECD approved pre-natal developmental toxicity study*
- Representing Emerald Kalama Chemical B.V., Ineos Chloro Toluenes Belgium NV and Lanxess Deutschland GmbH in disputes with ECHA on dossier compliance, dossier evaluation, read-across justification and with respect to the right to be heard*
- The Best Lawyers in the United Kingdom, Government Practice, 2023-2025
- Chambers UK, Sanctions, 2024-2025
- Legal 500 UK, Recommended, 2025-2027
- Pro Bono Recognition List of England and Wales, 2026
- Legal 500 Belgium, Customs, Trade, WTO and Anti-Dumping Practice, 2015-2016
- Member of Lithuanian Bar Association and the Lithuanian Lawyer’s Association
- Former President and Board Member of Lithuanian City of London Club
- Fulbright Scholar
- Alumni Member of the Institute of International Economic Law (IIEL) at Georgetown Law Centre
- Member of ASSIST Alumni worldwide
- Board Member, International Debate Education Association
- University of Cambridge, Cambridge Judge Business School Executive Education, LLM
- Georgetown University Law Center, LLM
- Law University of Lithuania (Mykolas Romeris), LLB
- England and Wales
- Lithuania
- English
- Lithuanian
- Russian

Emily C. Keil
Emily C. Keil focuses her practice on corporate restructuring and insolvency matters. Emily has experience assisting with debtor and creditor representations involving both in- and out-of-court restructuring efforts.
- Represents a military defense contractor Envistacom, LLC in connection with various restructuring transactions, including an assignment for the benefit of creditors
- Represents unsecured creditors’ committee of a biopharmaceutical company in connection with its chapter 11 case
- Represented independent directors of affiliates of Nordic Aviation Capital in connection with their chapter 11 restructuring of approximately $8 billion of debt and liabilities
- Best Lawyers: Ones to Watch in America, Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law, 2026-2027
- Legal 500 USA, Recommended Lawyer, 2022
- American Bar Association, member
- National Association of Women Lawyers, member
- George Washington University Law School, JD, Order of the Coif
- University of Denver, BA, magna cum laude
- Illinois
- US District Court for the Northern District of Illinois
