Howard Kleinman, partner and co-head of the Latin America practice, focuses his practice on mergers and acquisitions, capital markets, and financial transactions, with a strong focus on businesses and investors in Latin America. Drawing on nearly three decades of international experience, Howard offers strategic legal guidance and sound business solutions with respect to complex, cross-border transactions and transformational corporate initiatives. His clients include a variety of publicly owned and privately held companies and financial institutions based in Argentina, Brazil, Chile, Colombia, Mexico and Peru, among other jurisdictions, and whose investments, operations and other interests span a range of industries, including financial services, consumer products (including food and beverage), retail, entertainment, energy, transportation and more.
Fluent in Spanish and English, Howard has significant experience advising leading regional real estate developers regarding US-focused development, as well as Latin American companies seeking to establish or expand their global footprint across the United States and abroad. Clients that Howard has advised include Grupo Mexico, Grupo Sordo Madaleno, Grupo Boticario, Compania Cervecerias Unidas S.A., SKY Airlines, Cinepolis and Record TV. He regularly handles complex cross-border matters for clients such as a $2.1 billion multinational transaction involving the acquisition of a US freight transportation business, by a Mexico-based enterprise.
- Chambers and Partners
- The Legal 500 United States, Capital Markets, Capital Markets: Global Offerings, Banking and Finance
- The Legal 500 Private Practice Powerlist: US-Mexico 2022
- Super Lawyers 2006
- American Bar Association, International Law Section
- The Association of the Bar of the City of New York
- New York University School of Law, JD
- London School of Economics and Political Science, MA
- Columbia University, BA, with honors
- New York
- English

Erin Kelly
Drawing from more than two decades of diverse legal experience, Erin Kelly advises healthcare organizations on transactional and regulatory matters. Erin brings to her clients unique insights from her tenure as in-house counsel at various healthcare organizations and her time practicing as a transactional attorney at a global law firm. She has particular expertise in regulatory matters, including Medicare Advantage, Medicare risk adjustment, compliance and issues affecting downstream service providers to health plans. She has counseled healthcare organizations on risk-bearing intermediary challenges, provider-enablement strategies, innovative care model designs, new product development, Center for Medicare & Medicaid Innovation programs, value-based care arrangements and commercial contracting.
- Best Lawyers: Ones to Watch in America, Healthcare Law, 2025-2027
- American Health Law Association, member
- Metro Richmond Women’s Bar Association
- University of Michigan Law School, JD
- University of Notre Dame, BA, cum laude
- District of Columbia
- Illinois
- English

Stephen E. Reynolds
Advises companies on cybersecurity incident response, including ransomware attacks, data breaches, fund transfer fraud, and business email compromise
Represents clients in data security and privacy litigation and regulatory investigations
Counsels publicly traded companies on SEC cybersecurity disclosure requirements, including Form 10-K and Form 8-K filings
Leverages a background in computer programming and IT analysis to advise on data security, privacy, AI, and computer forensic investigations
Stephen Reynolds (CIPP/US, CISSP) advises some of the largest companies in the world on complex data security and privacy matters. As a former computer programmer and IT analyst, Stephen is uniquely able to use his technical background to the advantage of his clients in matters involving data security, privacy, artificial intelligence (AI), and computer forensic investigations.
Stephen assists companies with responding to cybersecurity incidents such as ransomware attacks, fund transfer fraud, data breaches, and business email compromise matters – including helping companies comply with regulatory obligations arising from these incidents, such as U.S. Securities and Exchange Commission (SEC) filings for publicly traded companies. He has also advised multiple publicly traded companies on compliance with the SEC’s requirements for disclosing cybersecurity incidents, risk management, and governance in Form 10-K annual reports and Form 8-Ks. Having litigated data security and privacy cases from the trial court level through the highest levels of appeal, Stephen also represents clients in litigation and regulatory investigations regarding data security, privacy, and technology matters.
Stephen frequently educates others on data security and privacy at industry conferences and forums. He is a former board member of the International Association of Privacy Professionals (IAPP), an instructor of the IAPP’s CIPP/US certification, and an instructor for the CISSP certification through ISC(2). He also lectures on Data Security and Privacy Law at Indiana University Robert H. McKinney School of Law.
- Handling cybersecurity response for a global technology company with operations in more than 150 countries
- Led the response to a ransomware attack involving a demand of more than $25 million from a threat actor that had critical global implications for the supply chain; oversaw the forensic investigation and coordinated with law enforcement*
- Led the response to a significant data security incident involving millions of individuals’ data
- Lexology Data 100, Recommended, 2026
- The Best Lawyers in America, Commercial Litigation, 2021 and 2025-2026, Litigation – Health Care, 2021 and 2025-2026
- IAPP Diversity in Privacy Award, Inaugural Recipient, 2023
- Cybersecurity Docket’s Incident Response 50, 2023
- Indianapolis Bar Association, E-Discovery, Information Governance & Cybersecurity Professional of the Year, 2022
- Southern District of Indiana, Local Rules Advisory Committee, member
- International Association of Privacy Professionals, Board of Directors
- US Secret Service Chicago Cyber Fraud Task Force, Steering Committee, member
- InfraGard Indiana, member
- Indiana University Maurer School of Law, Board of Directors
- Indiana University Maurer School of Law, JD
- University of Florida, BA
- District of Columbia
- Indiana
- English
Jonathan Ching
Jonathan Ching focuses his practice on innovative and complex structured finance transactions involving commodities, digital assets and all types of financial assets. Drawing on his experience as in-house counsel, he provides practical strategic advice to help clients navigate complex issues.
Jonathan advises emerging companies, financial institutions and investment managers on the use of blockchain, crypto assets and tokenization across the capital markets including token launches, market infrastructure, trading, clearing and settlement solutions. He also advises financial sponsors, institutional investors and non-profit organizations on documentation, custody and other considerations related to lending, pledging and holding digital assets.
- Chambers USA, Band 2, Capital Markets: Structured Products, 2022-2026; Derivatives, 2022-2025
- Legal 500 US, Recommended, 2025
- National Asian Pacific American Bar Association
- Leadership Council on Legal Diversity
- Fordham University School of Law, JD
- University of Southern California, BA, with honors
- New York

Ryan C. Tisch
Ryan Tisch is the global head of McDermott’s Antitrust Group. He provides strategic antitrust counsel for boards of directors, chief executive officers, and key business stakeholders as they maneuver government regulations around the world.
Ryan is known for securing approvals for significant mergers facing review in multiple jurisdictions, including some of the largest mergers in the communications, manufacturing, technology, and food and beverage industries. As the digital economy exposes traditional businesses to new competition, clients also turn to Ryan to advise on their evolving business platforms and go-to-market strategies.
- Obtained regulatory clearance for multiple acquisitions for clients including DuPont, Corteva, Chemours, CSX and Sonoco*
- Obtained merger clearance for DuPont’s acquisition of Pannar Seed from the Competition Tribunal of South Africa*
- Obtained merger clearance for a major US manufacturing company’s acquisition of a French manufacturer from the United Kingdom’s Competition and Markets Authority*
- Global Competition Review, GCR 100, Recommended, 2024-2026
- Legal 500, Recommended Lawyer, 2024
- Thomson Reuters, Stand-out Lawyer – independently rated lawyers, 2023- 2025
- American Bar Association, Antitrust Law Section, member
- District of Columbia Bar, member
- University of Chicago Law School, JD, with honors
- Yale University, BA
- District of Columbia

Jay J. Scharf
Jay J. Scharf advises high-net-worth and ultra-high-net-worth individuals, families and family offices. He delivers customized strategies to help his clients attain their personal and estate planning goals and minimize income and transfer taxes. Jay guides clients through the design and implementation of sophisticated estate plans with a focus on preserving family wealth in a manner that meets each client’s unique goals.
- The Best Lawyers: Ones to Watch in America, Trusts and Estates, Miami, 2021-2024
- Super Lawyers, Rising Star, 2020-2025
- Chambers High Net Worth, Florida: Private Wealth Law, 2024-2026; New York: Private Wealth Law, 2022-2023; Associates to Watch, 2022
- Legal 500 US Private Client, Recommended, 2026
- The Florida Bar, Tax Law Section and Real Property, Probate and Trust Law Section, member
- New York State Bar, Trusts & Estates Law Section, Tax Committee, member
- Association of the Bar of the City of New York, Non-Profit Organizations Committee, Estate & Gift Taxation Committee, member
- Boston University School of Law, LLM
- Elizabeth Haub School of Law at Pace University, JD, cum laude
- Mesifta Talmudical Seminary, First Talmudic Degree
- Florida
- New York

Anita S. Rosenbloom
Anita S. Rosenbloom offers estate and wealth transfer planning, business succession planning, and trust and estate administration counsel to high-net-worth and ultra-high-net-worth individuals, families and family offices throughout the United States. Anita’s clients value her decades-long experience and legal and business acumen. She is the principal legal advisor and trusted counselor to generations of multiple large families.
- Advised many clients across the wealth spectrum on how to maximize and leverage the use of exemptions to transfer billions of dollars of wealth to next generations, free of estate, gift and generation-skipping taxes*
- Structured many multigenerational plans, overlaying estate planning on business planning for family-controlled entity owners in wide-ranging industries, including real estate (multifamily housing, low-income housing and office/retail), private/fund investment management, aerospace (global aerial, intelligence, surveillance and reconnaissance), and fragrance and beauty products*
- Represented many multigenerational family groups in all lifecycle phases of estate planning, from active estate planning through administration of complex estates and trusts*
- Chambers High Net Worth, New York: Private Wealth Law, 2021-2026
- Best Lawyers in America, Litigation – Trusts and Estates, Trusts and Estates, 2005-2027
- Martindale-Hubbell, “AV Preeminent” Peer Rating
- American College of Trust & Estate Counsel, fellow
- New York State Bar Association, member
- Association of the Bar of the City of New York, Trusts & Estates Tax Committee, ex officio member
- New York University, LLM
- New York University School of Law, JD, cum laude
- State University of New York at Buffalo, BA, summa cum laude
- New York
- US District Court for the Southern District of New York

Ludwig Zesch
Ludwig Zesch advises national and international private equity funds, corporate borrowers, debt funds and financial institutions on a range of complex domestic and cross-border financings. His practice includes acquisition finance, direct lending, leveraged buyouts and corporate financing.
Ludwig has particular experience handling significant acquisition financings involving a range of debt structures, including unitranche/super senior structures.
Prior to joining McDermott Will & Schulte, he worked for other leading international law firms with the same advisory focus in Munich and Frankfurt.
Ludwig is the co-author of Acquisition Finance Agreements in Germany, a comprehensive commentary on credit agreements for leveraged buyouts under German law.
Ludwig advised:
- OLB on financing AUCTUS’ acquisition of Blasius Schuster Group
- Rantum Capital in the refinancing of NOBIX Group
- Main Capital Partners on the acquisition and financing of the acquisition of a majority stake in EIKONA AG
- JUVE Handbook of Commercial Law Firms, Recommended: Loans and Acquisition Finance, 2025–2026
- Handelsblatt/Best Lawyers™, Germany: Banking and Finance Law, 2023-2027
- IFLR1000, Banking and Finance, 2023-2026
- IFLR1000, “Rising Star”: Banking and Finance, 2022
- Legal 500 Germany, Recommended: Banking and Finance Law, 2025
- sdw Alumni e.V. (Verein der ehemaligen Stipendiatinnen und Stipendiaten der Stiftung der Deutschen Wirtschaft)
- Recht und Wirtschaft in Bayreuth e.V. (RW Alumni)
- German-Polish Lawyers’ Association (Deutsch-Polnische Juristen-Vereinigung e.V.)
- Higher Regional Court of Frankfurt
- University of Bayreuth
- University of Bayreuth
- Germany
- German
- English
- Polish

Peter Lu
Peter Lu is Global Head of the Firm’s China Practice. He advises clients on their most strategic mandates, with a particular focus on corporate matters, complex restructurings and strategic litigation. Across these three core areas, Peter advises clients on cross-border M&A, joint ventures, directors’ duties, governance matters, complex restructurings, disputes, crisis management and more. He advises private, public and state-owned enterprises across a number of industries, including healthcare, financial services, media, infrastructure, consumer, energy, transportation and professional services.
Transactional matters
- Advised Novartis Groupe France SAS sold the company CellforCure and its cell and gene therapy development and production site in Les Ulis, France, to Seqens SAS
- Advised Bank of China on M&A, general corporate, and restructuring matters*
- Advised ICBC on selling certain shares held by the bank*
- Legal 500 UK, Recommended, 2021, 2025-2027
- Global Restructuring Review GRR 30, Recommended, 2024
- Global Restructuring Review GRR 100, Recommended, 2023
- Law Society of England and Wales, member
- University College London, LLB
- University of York, MSc
- Nottingham University, BSc
- England and Wales
- English
- Chinese (Mandarin)

James M. Nicholas
James (Jim) Nicholas focuses his practice on federal and state labor and employment issues and litigation for life sciences, tech, private equity and portfolio companies. He is sought after to handle high-stakes matters relating to employee classification, wage and hour, leaves of absence, discrimination and harassment, wrongful termination and the enforcement of noncompetition and nondisclosure agreements, especially in Massachusetts and California.
Jim is an experienced litigator, frequently defending employers against wage and hour class actions brought under the Fair Labor Standards Act and state wage and hour laws. He represents employers in cases involving claims of discrimination and harassment, breach of contract, defamation, noncompetition defense and enforcement, and shareholder disputes.
- Obtained dismissal of a nationwide wage and hour class action based on enforceability of arbitration agreements applicable to named class representatives*
- Obtained summary judgement in favor of staffing agency involving claims by former executive for breach of contract and violation of the Massachusetts Wage Act*
- Advised private equity and strategic buyers and sellers on labor and employment matters in transactions across industries such as technology, staffing, healthcare, logistics, robotics, biotech and pharmaceuticals*
*Matter handled prior to joining the firm.
- Best Lawyers in America, Employment Law – Management, 2022-2023 and 2025-2026
- Legal 500 US, Labor and Employment Disputes, 2024-2025
- Massachusetts Super Lawyers, “Rising Star,” 2005-2012 and 2016
- Hingham Youth Football, Coach/Advisor
- Hingham High School Football and Lacrosse Boosters, 2021-2022
- University of Maryland Francis King Carey School of Law, JD, Order of the Coif
- State University of New York at Geneseo, BA
- Massachusetts
- US Court of Appeals for the First Circuit
- US District Court for the District of Massachusetts
