Ashley (Lee) McMahon focuses her practice on antitrust and competition matters. Lee advises clients on complex issues relating to and arising under the antitrust laws in connection with civil litigation, international cartels, and mergers and acquisitions. She assists clients with premerger notification, review and analysis under the Hart-Scott-Rodino (HSR) Antitrust Improvements Act. Lee is experienced in areas of e-discovery, document review and production for investigations before the Federal Trade Commission (FTC), Department of Justice (DOJ) and state attorneys general office.

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  • Legal Advisory Committee, Capital Area Immigrants’ Rights (CAIR) Coalition
  • American Bar Association, Section of Antitrust Law
  • Washington Council of Lawyers


University of Virginia School of Law, JD, 2016
Connecticut College, BA, magna cum laude, with distinction, 2009

District of Columbia

Courts / Agencies
US District Court for the District of Columbia