Vincent Li, PhD advises clients, particularly pharmaceuticals and life sciences companies, through all phases of patent litigation and arbitration, including pre-suit investigations. Vincent has first-hand experience representing companies in inter partes review proceedings involving compound patents. He also regularly assists clients in many aspects of patent law, including due diligence in support of purchase and sale agreements or purchase of royalty streams, patent prosecution and portfolio management, and freedom to operate analyses and opinions.
- Represented a multinational pharmaceutical company in an inter partes review and district court litigation relating to an overactive bladder drug*
*Matter handled prior to joining the firm.
- Patexia, Top Hatch-Waxman Litigator, 2024
- Boston College Law School, JD
- University of Southern California, PhD, Organic Chemistry
- Binghamton University, BS, Chemistry
- New York

Clarisse de Roux
Clarisse de Roux focuses her practice on structured finance transactions. She has a particularly strong background within financial institutions. She acts for both lenders (senior, mezzanine, unitranche) and borrowers.
- ESCP Business School & Queen Mary University of London, Specialized Masters Degree in International Business Law and Management
- Paris 1 Panthéon-Sorbonne University, Master 2, International Taxation and Company Law
- Oxford Brookes University, Master 1, Business Law, (Erasmus Program)
- Paris Nanterre University, LLB
- Paris
- English
- French

Sarah Sarb
Sarah Sarb focuses her practice on corporate and transactional matters, venture financings, corporate governance matters and entity formations. Sarah also advises clients on M&A transactions, including buy-side and sell-side representations and private equity acquisitions.
- American Bar Association
- Georgia Association for Women Lawyers, Young Lawyers Division
- Emory University School of Law, JD, transactional law certificate program, magna cum laude
- Wofford College, BA
- Georgia

Brandon Sarkauskas
Brandon Sarkauskas focuses his practice on corporate and transactional matters.
- University of Pennsylvania Law School, JD
- North Central College, BA, summa cum laude
- Illinois
Julia Hohlfeld
Julia Hohlfeld focuses her practice on commercial contracts and dispute resolution work.
Prior to practicing law, Julia gained practical experience at McDermott as a research assistant in the dispute resolution department. There, as well as at the German Foreign Office in the German Embassy in Mexico City, Mexico, she also completed parts of her legal clerkship.
In addition to her law studies at the Universities of Münster and Santiago de Compostela with a focus on legal drafting and dispute resolution, Julia successfully completed a two-year Foreign Law and Language Program for Lawyers in common law, including internships in a law clinic in Edinburgh and a major international law firm in Washington D.C.
- Handelsblatt/Best Lawyers™, “Ones to Watch” in Germany: Litigation, 2025
- German Institution of Arbitration (DIS)
- DIS40 – Initiative of Young Arbitrators
- German Women Lawyers Association e.V.
- Higher Regional Court of Cologne, Second State Exam
- University of Münster, First State Exam
- University of Münster
- Universidade de Santiago de Compostela
- Germany
- German
- English
- Spanish

Annabelle Juliette Rau
Annabelle Rau’s practice focuses on corporate law, capital markets law, banking and financial services law and financial regulatory law. Her regulatory practice ranges from traditional financial services regulation to new fintech business models, including crypto regulation. Annabelle also advises on all aspects of corporate law and related capital markets issues. Her focus is on corporate law, including the preparation and conduct of general meetings, the implementation of structural measures, and corporate governance and compliance issues.
Prior to joining McDermott Will & Schulte, Annabelle Rau worked at two international law firms in the area of corporate law in Germany and New York and conducted research as a visiting scholar at Columbia University for her comparative law study on German and U.S. securities regulation.
Annabelle Rau regularly publishes on corporate and financial regulatory topics. She is co-author of the first commentary on the regulation of crypto-assets (MiCAR), in which she analyses the obligations of crypto-asset service providers.
Annabelle advised:
- APONTIS PHARMA AG on the Preparation and Execution of the Shareholders’ Meeting with Squeeze-Out Resolution
- Ardian on the acquisition of a majority stake in centrotherm international AG, including the subsequent squeeze-out
- Atruvia on the reorganization of its card business with DZ BANK and VR Payment
- Main Capital Partners on its investment in listed VOQUZ Labs AG, including the subsequent squeeze-out
- Main Capital Partners on the Acquisition of a Majority Stake in windata
- Higher Regional Court of Düsseldorf, Second State Exam
- Leipzig University, First State Exam
- Germany
- German
- English

Kwabena A. Yeboah
Kwabena A. Yeboah focuses his practice on tax planning and tax structuring for domestic and cross-border transactions, including taxable and tax-free mergers, acquisitions, reorganizations, restructurings, and joint ventures. Additionally, Kwabena has experience advising private equity sponsors on the tax structuring of investment funds across various strategies.
- Best Lawyers: Ones to Watch in America, Tax Law, 2024–2026
- Georgetown University Law Center, LLM, Taxation, cum laude
- American University Washington College of Law, JD
- Washington University in St. Louis, BA
- District of Columbia
- New York
- US Tax Court

Robert A. Kaylor
Robert Kaylor practices both private client matters and cryptocurrency and financial technology work. In private client matters, he works with individuals, family offices and trust companies on matters related to trust and estate drafting and administration. Robert also regularly advises cryptocurrency and blockchain companies on fast-paced emerging federal and state regulatory issues, with a focus on custodian laws and regulations relevant to cryptocurrency exchanges.
- Northwestern Pritzker School of Law, JD, cum laude
- Carleton College, BA, with distinction
- Illinois
- English
- French

Melissa Bressler
Melissa Bressler focuses her practice on private client matters.
While in law school, Melissa was a volunteer at the Bluhm Legal Clinic Center on Wrongful Convictions, and a legal intern at Cabrini Green Legal Aid and at the US Equal Employment Opportunity Commission. She was also associate editor of the Northwestern University Law Review.
- Northwestern Pritzker School of Law, JD, cum laude, Order of the Coif
- Muhlenberg College, BA, magna cum laude, with highest honors
- Illinois

Tessa Kroll
Tessa Kroll focuses her practice on intellectual property litigation matters. She is a registered patent agent.
- Red Door Animal Shelter, volunteer, 2018 to present
- Chicago Women in Intellectual Property, member
- Northwestern Pritzker School of Law, JD, cum laude
- Columbia University
- Illinois
