Jonathan Lisus

T 416 598 7873 F 416 598 3730

Clients trust Jonathan to handle their most difficult and complex problems.  He has earned a reputation as “one of the best litigators in the country” (Chambers Canada), “an extremely creative and brilliant lawyer” and a “hard hitting litigator” (Chambers Global, Chambers Canada).

Jonathan’s litigation practice includes infrastructure-related litigation, contractual disputes, product liability, oppression remedies, franchise litigation, class actions and securities litigation in courts across the country including the Supreme Court of Canada. He has tried over seventy-five cases and over forty appeals to judgment, and is frequently engaged as trial and appellate co-counsel by peer law firms.  He has been lead counsel in many landmark decisions in the area of class actions, professional liability, public and constitutional law and commercial litigation.  He regularly acts as counsel to the Canadian Civil Liberties Association on constitutional challenges to government actions.

Known to be fearless, Jonathan is always approachable and respectful towards everyone he encounters.


  • Called to the Ontario Bar, 1992
  • LL.B., Osgoode Hall Law School

Community Involvement & Associations

  • Chief Justice of Ontario Advisory Committee on Professionalism, Member
  • Supreme Court Advocacy Institute, Member
  • Canadian Civil Liberties Association, Board of Directors and Executive Committee 
  • International Academy of Trial Lawyers, Board of Directors and Admissions Committee
  • American College of Trial Lawyers, Fellow
  • North York General Hospital Foundation, Board of Governors
  • Lawyers International Food Enterprise, co-founder and director
  • The Best Lawyers™ in Canada, 2020: Administrative and Public Law; Class Action Litigation
  • Benchmark Litigation, 2019: Top 50 Trial Lawyer in Canada
  • Benchmark Litigation Star: Commercial Litigation, 2019
  • Canadian Lexpert® Directory 2019: Litigation - Corporate Commercial, Class Actions, Directors' & Officers' Liability, Franchise Law
  • Chambers Canada, 2019: Band 1 - Dispute Resolution
  • Who's Who Legal, 2019: Global Litigation; Litigation - Canada
  • Benchmark Litigation, 2018: Top 50 Trial Lawyer in Canada
  • Benchmark Litigation, 2018: Ontario Litigator of the Year
  • Who's Who Legal, 2018: Global Litigation; Litigation - Canada
  • Lexpert Guide to the Leading US/Canada Cross-Border Litigation Lawyers in Canada, Corporate Commercial Litigation, Insolvency and Financial Restructuring
  • Lexpert Guide to the Leading US/Canada Cross-Border Litigation Lawyers in Canada
  • Lexpert, Guide to the 100 Most Creative Lawyers in Canada