Mary Lehner

Mary Lehner is our exclusively recommended Antitrust Law expert in Washington DC on the Advisory Excellence website. If you need assistance in this area, please contact Mary directly using the contact details listed above.

Mary Lehner is a partner in our antitrust, competition and trade group based in Washington, DC. Mary focuses her practice on representing clients before the FTC, the DOJ, and State Attorneys General on the antitrust aspects of mergers and acquisitions, joint ventures, distribution and intellectual property arrangements, and other competitive conduct.

Before joining Freshfields, Mary served as an advisor to two FTC Chairs, providing counsel on antitrust investigations, enforcement actions, policy initiatives, public relations, and congressional strategies.

Prior to her role in the Chairman’s office, Mary oversaw antitrust merger investigations as a lead attorney in the FTC’s Bureau of Competition.

Mary serves on the Steering Committee of GCR’s Women in Antitrust annual conference, has participated as a panellist in Women’s Competition Network and ABA Women in Deal Work events, and is a leader of the Freshfields US Diversity & Inclusion Committee.

She is also a HALO Champion (supporter of Freshfields’ LGBT initiative).

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