199 Bay St, Suite 5300, Commerce Court West, Toronto, ON
Year called to bar: 1988 (ON)
Katherine Kay is a partner in the Litigation & Dispute Resolution and Competition & Foreign Investment Groups. She has served on the Partnership Board and Executive Committee, as well as the Management Committee in the Toronto office. Katherine leads the Competition Litigation Group and her practice is concentrated on complex commercial litigation, often involving the interplay between regulatory, civil, and criminal law regimes, and across multiple jurisdictions. She is lead counsel on a broad range of cases dealing with all aspects of competition law, including criminal defence work, class and other civil actions, mergers, abuse of dominance, and other reviewable matters before the Competition Tribunal. A major focus of Katherine’s practice is defence of class actions, where she has extensive experience in a wide range of cases, including those alleging anti-competitive conduct and securities law violations, product liability, franchise, and consumer cases. Her class action practice emphasizes the key aspects of formulating and coordinating strategic responses, often working very closely with counsel in the United States, Europe, and other jurisdictions.