
Jonathan Lisus
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(Chambers Canada)
“He really is brilliant: incredibly hard working, diligent and able to deal with legal issues in a creative way.”
Bio
Described by his peers as ‘the gold standard in this space, a phenomenal litigator’, for more than 30 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.
Select Representative Mandates
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Chemtrade Electrochem Inc v. Superior Plus Corporation, 2025 ABCA 31
Successfully represented Superior Plus in Alberta Court of Appeal reversing trial judgment awarding $25 million Reverse Termination Fee in context of United States anti-trust merger review.
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Canada (Commissioner of Competition) v. Rogers Communications Inc., 2023 FCA 16
Successfully represented Rogers at trial and in Federal Court of Appeal in defence of Commissioner of Competition application to block $26 billion dollar merger between Rogers and Shaw.
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Aylmer Meat Packers Inc. v. Ontario
Successfully represented business in Ontario Court of Appeal reversing trial judgment, first imposition of private law duty of care on regulator exercising statutory authority.
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College of Optometrists of Ontario v. Essilor Group Inc., 2019 ONCA 265; leave to SCC denied
Successfully represented world’s largest eyewear company in Ontario Court of Appeal against provincial regulator, overturning judgment, constitutional applicability of provincial regulatory statute.
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Bombardier Inc. v. AS Estonian Air, 2014 ONCA 41
Successfully represented Republic of Estonia and Estonian Air in Ontario Court of Appeal establishing scope of commercial exception in State Immunity Act.
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Akagi v. Synergy Group (2000) Inc., 2015 ONCA 771
Successfully represented plaintiffs, Ontario Court of Appeal, reversing worldwide asset freeze, leading authority on investigative receivers, personal liability of court appointed receiver for costs.
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Royal Bank of Canada v. 1643937 Ontario Inc., 2021 ONCA 98
Successfully represented borrower in Ontario Court of Appeal reversing trial judgment, liability of bank for misrepresentation in personal guarantee and enforceability of entire agreement clauses.
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Parc Downsview Park Inc. v. Penguin Properties Inc., 2018 ONCA 666
Successfully represented federal government (Canada Lands Company) in Ontario Court of Appeal reversing judgment, validity and scope of commercial indemnity and test for actionable misrepresentation.
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Jeffrey v. London Life Insurance Company 2018 ONCA 716
Successfully represented Class counsel in Ontario Court of Appeal obtaining contingency fee under Class Proceedings Act in absence of monetary award to class.
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Royal Host GP Inc. v. 1842259 Ontario Ltd., 2018 ONCA 467
Successfully represented landlord and insurer in Ontario Court of Appeal, reversing decision regarding insurance coverage in the event of fire loss.
Recognitions
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Canadian Legal Lexpert Directory 2025
We have maintained our leading position in litigation among top Canadian law firms in the 2025 Lexpert Directory.
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Chambers Global 2025
Jonathan Lisus, Matthew Gottlieb, and Crawford Smith are recognized as leading lawyers by the Chambers Global Guide 2025.
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Lexpert’s Leading 500 Cross-Border Lawyers 2025
Five of our lawyers are recognized in the 2025 Lexpert 500 guide, which profiles an exclusive group of top ranked lawyers across practice areas important to in-house counsel across America.
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Lexpert Special Edition: Litigation 2024
Twleve of our lawyers are recognized alongside leading Canadian litigators in the Lexpert Special Edition: Litigation 2024 guide.
Credentials
- Credentials
- Memberships
- Called to the Ontario Bar, 1992
- LL.B., Osgoode Hall Law School
- Chief Justice of Ontario Advisory Committee on Professionalism, Member
- Supreme Court Advocacy Institute, Member
- Canadian Civil Liberties Association, Board of Directors and Executive Committee
- American College of Trial Lawyers, Fellow
- International Academy of Trial Lawyers, Board of Directors and Admissions Committee
- North York General Hospital Foundation, Board of Governors
- Lawyers International Food Enterprise, Co-founder and Director