About Jonathan
Described by his peers as ‘the gold standard in this space, a phenomenal litigator’, for more than thirty years Jonathan has won landmark decisions across a broad variety of subject matter including competition law, constitutional law, liability of public authorities, professional liability, criminal law, financial services, franchise law and contract disputes. He has tried over 90 cases to judgment and argued over 55 appeals in provincial appellate courts and the Supreme Court of Canada.Jonathan regularly appears as Special Counsel to the Canadian Civil Liberties Association in challenges to government action. He is a Fellow of the American College of Trial Lawyers, the International Academy of Trial Lawyers, a member of the Chief Justice of Ontario’s Advisory Committee on Professionalism, and a member of the Supreme Court Advocacy Institute, a select group of appointed advocates who provide pro bono peer review to counsel appearing in the Supreme Court of Canada. He maintains an active trial and appellate practice across Canada.
Described by his peers as ‘the gold standard in this space, a phenomenal litigator’, for more than thirty years Jonathan has won landmark decisions across a broad variety of subject matter including competition law, constitutional law, liability of public authorities, professional liability, criminal law, financial services, franchise law and contract disputes. He has tried over 90 cases to judgment and argued over 55 appeals in provincial appellate courts and the Supreme Court of Canada.
Jonathan regularly appears as Special Counsel to the Canadian Civil Liberties Association in challenges to government action. He is a Fellow of the American College of Trial Lawyers, the International Academy of Trial Lawyers, a member of the Chief Justice of Ontario’s Advisory Committee on Professionalism, and a member of the Supreme Court Advocacy Institute, a select group of appointed advocates who provide pro bono peer review to counsel appearing in the Supreme Court of Canada. He maintains an active trial and appellate practice across Canada.
Practice Areas
Professional Malpractice Law
Administrative and Public Law
Alternative Dispute Resolution
Appellate Practice
Bet-the-Company Litigation
Class Action Litigation
Commercial Leasing Law
Corporate and Commercial Litigation
Director and Officer Liability Practice
Franchise Law
Product Liability Law
Real Estate Law
Securities Law
Awards & Recognition
- Lawyer of the Year: Professional Malpractice Law, Toronto, Canada (2026)
- Lawyer of the Year: Bet-the-Company Litigation, Toronto, Canada (2025)
- Recognized: Administrative and Public Law
- Recognized: Alternative Dispute Resolution
- Recognized: Appellate Practice
- Recognized: Bet-the-Company Litigation
- Recognized: Class Action Litigation
- Recognized: Commercial Leasing Law
- Recognized: Corporate and Commercial Litigation
- Recognized: Director and Officer Liability Practice
- Recognized: Franchise Law
- Recognized: Product Liability Law
- Recognized: Professional Malpractice Law
- Recognized: Real Estate Law
- Recognized: Securities Law