Washington, D.C. Office

2001 Pennsylvania Ave, NW
Suite 300
Washington, DC 20006

Washington, D.C.

Cohen & Gresser’s Washington, D.C. office handles a range of commercial litigation and regulatory enforcement actions, with a focus on domestic and foreign antitrust and complex litigation issues. Our attorneys advise clients on all aspects of U.S. antitrust law, including criminal and civil litigation matters, as well as compliance and regulatory matters in the federal agencies. They also handle a variety of other commercial litigation matters throughout the DMV.

The Washington, D.C. office is led by Melissa H Maxman, a partner in the firm with three decades of experience advising domestic and foreign corporations on global antitrust and related business issues. Ms. Maxman is licensed to practice law in the District of Columbia, the State of Maryland, the Commonwealth of Virginia, and the Commonwealth of Pennsylvania.

The Legal 500 United States 2024 edition has recognized Cohen & Gresser’s New York and Washington, D.C. offices for excellence across multiple categories, including Antitrust LitigationCorporate Investigations and White-Collar CrimeCommercial Litigation, and Securities Litigation. Testimonials included in the guide praise the firm for being a “litigation powerhouse” and for its “devotion to the needs of the clients, its creativity, and its perseverance.”

Mark Cohen is once again recognized as a Leading Partner in both Securities Litigation and Corporate Investigations & White-Collar Crime: Advice to Individuals.

The 2024 guide also recognizes Lawrence T. GresserJonathan AbernethyJason BrownS. Gale Dick, Christian EverdellJeffrey Lang, Alisa LuMelissa MaxmanDouglas PepeJohn RobertiDaniel Tabak, and Ronald Wick as recommended lawyers.

This 17th edition of The Legal 500 United States guide, which identifies the “true superstars of the profession,” involved a detailed assessment of various factors, including work conducted by law firms over the past 12 months and historically; experience and depth of teams; and client feedback.

Founded in 2002, Cohen & Gresser’s New York office serves as the firm’s headquarters. Our New York attorneys are particularly strong in complex litigation, investigations, and transactions. The firm’s Washington, D.C. office handles a range of commercial litigation and regulatory enforcement actions, with a focus on domestic and foreign antitrust issues.

Cohen & Gresser earned multiple practice area and individual lawyer rankings in the 2024 edition of Chambers USA, receiving high praise for having an “incredible collection of brilliant, hard-working lawyers” who are “focused on providing clear and easy to understand guidance and advice."

The firm’s White Collar Defense & Regulation practice is once again ranked in the guide, maintaining its position as one of the “Elite” firms in the Litigation: White-Collar Crime & Government Investigations category. Chambers recognized the firm’s “strong regulatory investigations and enforcement practice,” specifically highlighting its “expert financial services practice which offers particular strengths in FINRA and SEC proceedings.” Client feedback praises the team for its “strong expertise with the DOJ and with prosecutors.”

The Commercial Litigation practice is also ranked in the Litigation: General Commercial: Highly Regarded category, receiving high praise from clients for having a “strong understanding of the client’s needs” and for being “smart, creative and willing to try difficult strategies and aggressive approaches.”

The firm’s Antitrust & Competition practice is ranked in the Antitrust category, with Chambers noting that “Cohen & Gresser houses a strong practice across a range of antitrust disputes [including] sophisticated litigation.” Client feedback praises the team for being “creative and responsive” and having “strong knowledge of antitrust class actions.”

Partners throughout Cohen & Gresser’s US practices also earned individual rankings in the following categories:

Antitrust: Litigation Specialists (DC)                                  

Melissa H Maxman

John Roberti

Litigation: General Commercial (NY)

Lawrence T Gresser

Litigation: Securities (NY)

Mark S Cohen

Litigation: White-Collar Crime & Government Investigations (NY)

Jonathan S Abernethy

Jason Brown

Mark S Cohen

Christian R Everdell

Chambers is the world’s leading legal data and analytics provider, highlighting the top lawyers and law firms across the USA based on in-depth research that includes reference feedback, client satisfaction, reputation in the market, peer knowledge, and other discreet independent market sources.

Best Lawyers in America recognized 14 Cohen & Gresser lawyers in its newly-published 2024 guide. The publication—now in its 30th edition—evaluates and selects lawyers based entirely on peer review. The survey process is “designed to capture, as accurately as possible, the consensus opinion of leading lawyers about the professional abilities of their colleagues within the same geographical area and legal practice area.”

Six C&G attorneys are recognized by their peers as “Best Lawyers” in their practice areas:

Eight attorneys are recognized as “Best Lawyers: Ones to Watch” in their practice areas:

The Antitrust Division of the U.S. Department of Justice (“DOJ”) last week announced the formation of a new task force to guide its enforcement strategy and policy approach to health care, with an apparent focus on industry consolidation and collusive behavior.

According to the DOJ announcement released on May 9, 2024, the Task Force on Health Care Monopolies and Collusion (“HCMC”) will consider “widespread competition concerns shared by patients, health care professionals, businesses and entrepreneurs.” Issues to be addressed include payer-provider consolidation, serial acquisitions, labor and quality of care, medical billing, health care information technology services, and access to and use of health care data. The task force will include both civil and criminal enforcement attorneys, as well as economists, industry experts, technologists, data scientists, investigators, and policy advisors from across the Antitrust Division’s sections and offices.

The announcement of the HCMC is unsurprising in many respects. The health care industry has long been a major target of antitrust enforcement, and the Biden DOJ has previously signaled its continued focus on health care competition. In December 2022, the Antitrust Division entered into a formal collaboration with the Office of the Inspector General of the Department of Health and Human Services aimed at preventing collusion and promoting competition in health care markets. And just last month, the Antitrust Division launched an online portal for the public to report potentially anticompetitive health care practices.

Moreover, there is precedent for efforts to consolidate antitrust enforcement expertise in complex industries. Last week’s announcement is reminiscent of the Federal Trade Commission’s 2019 formation of a task force focused on competition in technology markets. Notably, like that task force, the HCMC appears to be drawing on the agency’s current resources rather than hiring additional staff, suggesting that the Antitrust Division’s focus is on more efficient, and not necessarily broader, enforcement.

In a National Law Journal article about the HCMC, Melissa H. Maxman, Washington DC Office Managing Partner, was quoted as noting that there are smaller health care companies that will be relieved to be examined under an enforcement approach that is targeted at their specific factual situations. “Task forces sometimes can be inefficient,” she added, “[b]ut if ever there were a need for one, it would be in health care competition.” While the impact of the HCMC remains to be seen, the Antitrust Division’s approach has the potential to facilitate a better informed and more comprehensive analysis of a market that poses unique regulatory and enforcement challenges.

The Cohen & Gresser antitrust team has extensive experience representing businesses in the health care industry, including physicians, pharmacies, and manufacturers. If you have any questions about potential areas of focus for the HCMC, please contact either of the authors of this article.

Cohen & Gresser's Washington, D.C. lawyers have been recognized in the 2024 Super Lawyers guide.

Each year, Super Lawyers identifies outstanding lawyers nationwide and regionally who have attained a high degree of peer recognition and professional achievement. Only 5 percent of lawyers are selected as Super Lawyers, and only 2.5 percent are selected as Rising Stars. This latest guide recognizes 100 percent of our D.C. partners and associates.

The C&G lawyers recognized as Washington, D.C. Super Lawyers are:

The C&G lawyers recognized as Washington, D.C. Rising Stars are:

Last month, the Department of Justice Antitrust Division and the Federal Trade Commission (collectively, the Agencies) released the 2023 Merger Guidelines. The Guidelines are the latest iteration of a guidance document published by the Agencies since 1968, which has been revised numerous times over the years.

In this C&G Client Alert, Ronald Wick, John Roberti, and Derek Jackson write that the newest Guidelines articulate a more comprehensive and aggressive approach to merger enforcement than contemplated in recent iterations, and explore the most significant changes.

Cohen & Gresser partner John Roberti has been recognized as a Thought Leader in the Competition section of the Who’s Who Legal (WWL) guide, and partner Thomas Shortland has been recognized as a Future Leader in the guide’s Commercial Litigation section.

The Competition report “brings together the insight, expertise, and wisdom of some of the world’s foremost competition lawyers and economists in a single report.” John joins a distinguished group of lawyers and other professionals who, according to WWL, “are worthy of special mention owing not only to their vast expertise and experience advising on some of the world’s most significant and cutting-edge legal matters, but also their ability to innovate, inspire, and go above and beyond to deliver for their clients.”

The Commercial Litigation report provides an in-depth analysis of the foremost litigators around the world who are singled out for their outstanding ability within this contentious context.” Tom is included among “standout practitioners in the litigation field” that WWL identified as future leaders in the market.

Who’s Who Legal is an organization that identifies the leading legal practitioners and consulting experts in business law based on comprehensive, independent research. The individuals featured in the guide obtained the largest number of nominations from peers, corporate counsel, and other market sources.

Cohen & Gresser lawyers Mark S. CohenJohn Roberti, and Daniel Tabak have been selected as “Litigation Stars” in the 2024 edition of Benchmark Litigation. The guide’s “Stars” are identified through Benchmark Litigation’s independent research process as among the preeminent litigation practitioners in the United States. The guide conducts extensive interviews with litigators, dispute resolution specialists and their clients, as well as analysis of the market’s most important cases and firm developments, in selecting its “Stars.” Lawyers included on the list are highly regarded by their peers and possess a strong case record and positive client feedback.

Since its inception in 2008, Benchmark Litigation has been the only publication on the market to focus exclusively on litigation in the United States.

Cohen & Gresser is pleased to announce that Mark S. Cohen, Melissa H. Maxman, John Roberti, and Ronald F. Wick are included in the 2024 Lawdragon 500 Leading Litigators in America guide. Selection for the guide is based on extensive independent research focused on which lawyers and law practices have had a significant impact, with an emphasis on recent matters handled.

Recognized Lawyers

Mark S. Cohen – Commercial Litigation, including Real Estate, Antitrust, and White Collar

Melissa H. Maxman – Litigation, including White Collar and Antirust

John Roberti – Antitrust & Competition Law, including Litigation

Ronald F. Wick – Antitrust & Competition Litigation

Lawdragon is a legal media company providing news content and editorial features, including guides to the nation’s leading lawyers. This is Lawdragon’s second edition of the guide, assessing America’s top talent among those principally representing corporations and other organizations litigating claims involving antitrust, financial and securities litigation, intellectual property, commercial, M&A, cybersecurity and data privacy, and white collar and investigations.

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General Inquiries


Managing Partner

Melissa H Maxman

2001 Pennsylvania Ave, NW
Suite 300
Washington, DC 20006

+1 202 851 2070 phone
+1 202 851 2081 fax