Paul Morrison

Miller Thomson - Ontario


40 King Street West, Suite 5800
Toronto, ON, M5H 3S1

+1 416 597 6050

Litigation Star



Practice area:

Class action

Paul Morrison has a national reputation as one of Canada’s leading counsel in complex corporate and commercial litigation, including class action litigation, securities litigation, competition litigation, insolvency litigation, professional liability, products liability and domestic and international arbitration.

Paul regularly acts on behalf of leading companies and institutions, both foreign and domestic, and has appeared at all levels of trial and appellate court, including the Supreme Court of Canada and before administrative tribunals and arbitration panels.

Paul’s career has been characterized by numerous lengthy and complex trials. He has represented some of the world’s most prominent institutions and corporations in litigation involving hundreds of millions of dollars. By way of examples, he has successfully represented several leading financial institutions, the Pepsi-Cola Company, the Ford Motor Company and the Canadian National Railway. Paul acted for one of the world’s largest mining companies in a heavily contested arbitration proceedings concerning extensive mining properties in Northern Ontario; he has acted for Clifford Chance, the world’s largest law firm, in the successful defence of an action by four Canadian chartered banks, claiming approximately $2 billion arising out of the failure of the Canary Wharf Project in London, England. 

Paul has an unparalleled reputation and experience in the defence of high-profile complex class proceedings. He represented the Government of Ontario in the defence of highly publicized class proceedings arising out of the widespread contamination of the water supply in Walkerton, Ontario that resulted in seven deaths and illness to thousands of inhabitants of the Walkerton area. He was instrumental in fashioning a unique and widely-acclaimed settlement of this complex class action. In addition to, Paul represented Degussa AG, a leading chemical manufacturer and its affiliates, in the defence of cross-Canada class proceedings based upon allegations of a world-wide price-fixing conspiracy in the sale of vitamins for use in animal feed. This resulted in the largest settlement of its kind in Canadian class action history.

Paul is, by invitation, an Honorary Overseas Member of the Commercial Bar Association, England and Wales (COMBAR). He is an inducted Fellow of the Litigation Counsel of America. He is a Fellow of the Chartered Institute of Arbitrators (FCIArb).

Paul served for 12 years as the appointee of the Attorney General on the Class Proceedings Committee of Ontario. He serves as a Co-Chair of the University of Toronto Discipline Tribunal and is the immediate past-President of the University of Toronto Law Alumni Association. He is a past member of the Board of Directors of the Advocates Society and was co-chair of its Civil Litigation Task Force. He is a past member of the Board of Directors of the Toronto Rehabilitation Hospital Foundation.


Updated March 2021