Deborah Glendinning - Litigation Lawyer

Deborah Glendinning

Partner, Litigation

Key Contact: Class Action Defence

Key Contact: Corporate and Commercial Litigation

Contact Information

tel: 416.862.4714



Deborah is a partner in the Litigation Department and practices nationally - defending and strategically advising on the avoidance of complex business critical multi-jurisdictional class actions and other large aggregate claims, particularly corporate, commercial and banking disputes, product liability and negligence claims. Deborah’s experience includes acting as national coordinating counsel for a major consumer product company which requires strategic oversight and coordination of litigation internationally. Over the past 20 years, she has acted on cases which have produced ground-breaking decisions dealing with procedural and evidentiary aspects of certification, acted as coordinating counsel in cross border cases and provided advice and assistance to corporations seeking to implement measures to avoid class action litigation. Deborah is a results driven, innovative and disruptive legal thinker focused on providing business solutions. She is a Frequent speaker and author on cross-border, complex and multi-jurisdictional class actions and risk management topics; developed and taught advocacy and training programs; and Co-Chair of the ABA’s international subcommittee on class actions. In 2014, 2015, and 2016, Deborah was selected by Benchmark Canada to the inaugural Top 25 Women in Canadian Litigation list.

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

    • GitHub Inc. in its class proceeding concerning an alleged data breach involving the information of credit card applicants
    • Imperial Tobacco in product liability class actions and health care cost recoupment actions across the country, the biggest Civil Class Action in Canadian history
    • 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
    • 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.

  • Chambers Canada: Canada’s Leading Lawyers for Business: Recognized in Dispute Resolution: Class Action (Defence); Litigation: Products Liability
  • The Canadian Legal Lexpert Directory: Recognized in Class Actions; Litigation - Product Liability
  • Best Lawyers in Canada: Recognized in Class Action Litigation
  • Legal 500: Recognized as a Leading Lawyer, Dispute Resolution (Ontario)
  • Benchmark Litigation Canada: Recognized in Class Action; Dispute Resolution; Product Liability and Recall
  • Who's Who Legal:  Recognized in Canada - Professional Negligence; International - Professional Negligence

  • Law Society of Ontario
  • Canadian Bar Association
  • Metropolitan Toronto Lawyers Association
  • Advocate's Society
  • American Bar Association