16 Apr 2026
Diane Hazel Joins Morrison Foerster as Partner in Antitrust Law Group
"Diane Hazel joins Morrison Foerster's Antitrust Law Group in Denver as a partner, focusing on antitrust litigation, high‑stakes class actions, investigations and regulatory defense."
Hazel is a nationally recognized antitrust litigator and former government enforcer who will focus on complex antitrust litigation, high‑stakes class actions and multidistrict litigation (MDL), investigations, and regulatory defense. She represents clients in matters involving alleged price‑fixing, market allocation, monopolization and other forms of alleged anticompetitive conduct, and counsels on consumer protection, compliance with FTC rules, and fee and disclosure issues.
Hazel joins Morrison Foerster from another prominent firm, where she built a nationally focused practice centered on high‑stakes antitrust class actions and regulatory defense. Her litigation work spans technology, healthcare, manufacturing and energy industries, and she advises on antitrust aspects of joint ventures, competitor collaborations, information sharing, distribution contracts, product pricing, and mergers, including Hart‑Scott‑Rodino filings and merger reviews.
Previously, Hazel served as First Assistant Attorney General at the Colorado Attorney General’s Office, where she led the Antitrust Unit and supervised numerous investigations and merger reviews. Earlier in her career she was an attorney in the Federal Trade Commission’s Bureau of Competition, Health Care Division, where she investigated and prosecuted antitrust matters in the healthcare and pharmaceutical sectors. She also received a Fulbright Grant and spent a year working with the Namibian government on antitrust and consumer protection initiatives.