Claire Leonard

Associate, Washington, DC



Claire Leonard is a litigator in the Firm's Global Antitrust/Competition practice group, who focuses on complex commercial litigation, criminal investigations, and antitrust counseling. She handles matters before state and federal courts across the country, and regularly represents clients before the U.S. Department of Justice and other agencies.

Claire's work includes defending international corporations in large-scale and high-stakes litigations, including class actions, criminal prosecutions, and merger enforcement actions. Her experience spans every stage of litigation—from case inception through trial, as well as appeals in federal circuit courts and the U.S. Supreme Court.

Claire also has significant experience representing corporate clients in commercial disputes involving alleged violations of the Racketeer Influenced and Corrupt Organizations Act (RICO) and state consumer protection laws.

Claire regularly counsels clients on competition issues arising at the intersection of antitrust and international trade and intellectual property, including antitrust issues in antidumping proceedings and standard-setting organizations.

Claire maintains a robust pro bono practice, most recently representing impoverished debtors suing the City of Ferguson, Missouri.

During law school, Claire was the Managing Editor of the Washington & Lee Law Review. She also served as a judicial intern to the Honorable Richard J. Leon of the United States District Court for the District of Columbia.

Bars and Courts
Maryland State Bar
District of Columbia Bar
Washington and Lee University School of Law
Vanderbilt University