Deborah A. Glendinning - Osler, Hoskin & Harcourt LLP

Deborah A. Glendinning

Listed in Best Lawyers since 2010

Deborah is Chair of the firm’s National Litigation Department, member of the firm’s Executive Committee and co-Chair of the international subcommittee on class actions of the ABA. Over the past 16 years, her practice has focused almost exclusively on the defence of class actions, and other large aggregate claims, particularly corporate, commercial and banking disputes, product liability and negligence claims. She has had several recent successes in having certification denied in multiple jurisdictions. Her practice is national in scope and she is lead counsel in multi-jurisdictional cases in virtually every province in the country. Her experience includes acting as national coordinating counsel for a major consumer product company which requires management and coordination of litigation internationally. She has acted on cases which have produced ground-breaking decisions dealing with procedural and evidentiary aspects of certification, acting as coordinating counsel in cross border cases and providing advice and assistance to corporations seeking to implement measures to avoid class action litigation. She has published numerous articles on class proceedings in both Canada and the US, and has developed and taught advocacy training programs. In 2014, Deborah was selected byBenchmark Canada to the inaugural Top 25 Women in Canadian Litigation list.

Additional Information

Notable Matters

A sample of her work includes representation in the following matters:

  • Microsoft in successfully defending the  first Canadian class action to test the enforceability of online signup agreements
  • Amex Bank of Canada in numerous class actions in Ontario and Quebec related to credit card agreements and other consumer banking services
  • Several financial institutions in defending class actions and regulatory investigations arising out of interest calculations  and credit charges
  • Proctor & Gamble in the recent series of pet food class actions
  • Imperial Tobacco in product liability class actions and health care cost recoupment actions across the country
  • Inco in a class action for personal injury and property damage in connection with an environmental discharge

As a result of Deborah’s extensive experience in dealing  with class actions and other significant aggregate claims she regularly acts as a consultant or trusted advisor to other counsel dealing with similar matters.

University of TorontoBA University of Ottawa
American Bar AssociationAdvocate's SocietyMetropolitan Toronto Lawyers AssociationCanadian Bar AssociationLaw Society of Upper Canada

Office Location

100 King Street West
1 First Canadian Place
Suite 6200, P.O. Box 50
Toronto, ON M5X 1B8

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