Matthew Fleming

Matthew Fleming is a Partner in the Litigation and Dispute Resolution group of Dentons' Toronto office. His practice focuses on Commercial Litigation, including class actions, securities litigation, product liability and professional liability matters.

Matthew has represented financial institutions, accounting firms, manufacturers, retailers, natural resource companies and others in a wide variety of commercial litigation matters, including class actions, shareholder disputes, proxy fights, contested takeover bids and regulatory investigations. He also advises and represents clients engaged in domestic and commercial arbitration, as well as auditor liability, administrative and judicial review proceedings and contract and tort claims.

He has appeared before the Supreme Court of Canada, the Court of Appeal for Ontario, the Federal Court of Appeal, the superior courts of Ontario, Alberta, British Columbia, Saskatchewan, Québec and Nova Scotia, and administrative bodies such as the Ontario Securities Commission and the tribunals of the Chartered Professional Accountants of Ontario.

His experience includes representing a consortium of Canadian airport authorities in a proposed class proceeding in the Supreme Court of British Columbia related to airport improvement fees; representing Gold Flora Corporation in a precedent-setting decision regarding an application by dissenting shareholders to fix the fair value of their shares following a business combination, named one of Lexpert's Top 10 Business Decisions of 2024/2025; successfully representing Honda and Mercedes Benz in obtaining dismissal of proposed product liability class actions; and acting as trial and appellate counsel, including in the Supreme Court of Canada, for Deloitte LLP in connection with a $450 million claim relating to the fraud at Livent Inc. (Deloitte & Touche v. Livent Inc. (Receiver of), 2017 SCC 63).

Matthew regularly speaks and publishes on class actions, securities litigation, corporate governance and director and officer liability matters. He has volunteered as a mentor to new immigrants to Canada under the Toronto Region Immigrant Employment Council Mentorship Program and to high school students under the LAWS Mentoring Program.

He holds an LLB (2002) and a B.Sc. (Hons.) in Political Science (1999) from the University of Ottawa. He is recognised by Chambers Canada for Litigation: General Commercial (Ontario), by The Legal 500 Canada for Dispute Resolution, by The Canadian Legal Lexpert Directory for Class Actions, Securities Litigation, Corporate Commercial Litigation and Product Liability, by The Best Lawyers in Canada for Corporate and Commercial Litigation, Director and Officer Liability Practice and Product Liability Law, and by Benchmark Litigation Canada as a Litigation Star for Securities, Commercial and Class Action.