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Karen M. Lerner

  • New York
  • 250 Park Avenue
    Suite 820
    New York, NY 10177
  • 212.371.6600
Headshot photo of Karen M. Lerner
Headshot photo of Karen M. Lerner
Karen M. Lerner Partner
  • New York
  • 250 Park Avenue
    Suite 820
    New York, NY 10177
  • 212.371.6600

Biography

Karen M. Lerner is a partner in our New York office focused on antitrust and commodities litigation. 
Over the course of her career, Ms. Lerner has successfully litigated complex class actions that have recovered billions of dollars on behalf of institutional and individual plaintiffs. She has played important roles in several landmark antitrust cases and remains one of the few women ever appointed as Interim Co-Lead Class Counsel in a Commodity Exchange Act case. In addition to her litigation work, she also advises individuals, corporations, and nonprofits regarding business practices and corporate governance. In 2022, Ms. Lerner was named a Fellow of the American Bar Foundation, a global honorary society limited to one percent of lawyers licensed to practice in each jurisdiction.

Prior to joining KM, Ms. Lerner was of counsel at McDonough, Korn & Eichhorn, where she handled cases up to and including at trial.

Ms. Lerner is actively involved in promoting volunteerism in the legal community and through women’s organizations. She is an advocate for diversity and inclusion and is a member of Women Antitrust Plaintiffs’ Attorneys (WAPA), an organization for female attorneys who focus their legal practice on representing businesses injured by cartels or other anticompetitive activities. Finally, in addition to her legal practice and activities, Ms. Lerner has served as a member of the Board of Directors for several charitable organizations.  

 
  • The University at Albany, SUNY (B.A. summa cum laude, Phi Beta Kappa, 1988)
  • University of Pennsylvania School of Law (J.D. 1991)
  • The United States Supreme Court
  • United States Courts of Appeals for the Second and Third Circuits
  • United States Court of Appeals for the District of Columbia
  • United States District Courts for the Southern and Eastern Districts of New York
  • United States District Court for the District of New Jersey
  • New York State Bar
  • New Jersey State Bar
  • The District of Columbia Bar
National Law Journal Elite Women of the Plaintiffs Bar, 2022-2023
Top Rated Antitrust Litigation Attorney, Super Lawyers, 2021-2024
Top Women Attorneys in New York, Super Lawyers 2023-2024
Top Women Attorneys in The New York Metro Area, American Registry, 2021-2022
Law360's Competition Editorial Advisory Board, 2022-2023

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