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Brandon Kain is a partner in our Litigation Group in Toronto. His practice focuses on appellate litigation, administrative law, broadcasting and telecommunications, commercial disputes, class actions and product liability. He has acted for a wide variety of clients in major litigation – including individuals, large and small corporations, industry associations and public interest groups – and has appeared before the Supreme Court of Canada and the Federal, Alberta, British Columbia, Manitoba, Ontario and Saskatchewan courts.

" He is a true expert when it comes to complex matters of contract law. "
Client Testimony, Chambers & Partners

Appellate Litigation

Brandon is the head and co-founder of our National Appellate Litigation Group. He has acted in 22 appeals in the Supreme Court of Canada, including successfully as lead counsel for the appellant, along with numerous appeals in the Federal and provincial appellate courts. His appeals have involved a diverse range of issues, encompassing Aboriginal, administrative, broadcasting, civil procedure, class actions, constitutional, contract, criminal, environmental, insolvency, labour and employment, private international, product liability, restitution, tax, telecommunications and tort law. Twelve of his appeals are included in Lexpert Magazine’s annual list of the Top 10 Business Decisions in Canada, and three have received a “National Impact Case of the Year” award by Benchmark Litigation Canada. In 2022 and 2020, he was part of the team that received the winning award for “Commercial Litigation Team of the Year” at the Canadian Law Awards, and in 2021, he received an Excellence Award for “Litigator of the Year” at the Canadian Law Awards.

Administrative Law

Brandon frequently acts in judicial reviews and administrative appeals. He successfully delivered the oral argument for the appellants, Bell Canada and the National Football League, on the standard of review in the Supreme Court of Canada’s 2019 administrative law trilogy, which established that questions of law are reviewed for correctness when subject to statutory appeal rights, and sets out Canada’s governing framework for judicial review: Bell Canada v. Canada (A.G.), 2019 SCC 66. Brandon has also acted in several other leading administrative law cases, including Mikisew Cree First Nation v. Canada (Governor General in Council), 2018 SCC 40; Green v. Law Society of Manitoba, 2017 SCC 20; Communications, Energy and Paperworkers Union of Canada, Local 30 v. Irving Pulp & Paper, Ltd., 2013 SCC 34; and Air Canada v. Toronto Port Authority, 2011 FCA 347. 

Brandon was recently successful in setting aside an Ontario Energy Board decision on a statutory appeal which concerned the allocation of nearly $900 million in future tax savings for Hydro One: Hydro One Networks Inc. v. Ontario Energy Board, 2020 ONSC 4331 (Div. Ct.). As well, he successfully defeated a judicial review application seeking to cancel several of Syngenta Canada’s federal pest control product registrations: David Suzuki Foundation v. Canada (A.G.), 2019 FC 411.

Broadcasting and Telecommunications

Brandon has significant experience in litigation involving the broadcasting and telecommunications industries. He has acted in nine appeals from the CRTC to the Federal Court of Appeal, including as lead counsel, along with the judicial review of a Cabinet decision in the Federal Court. He successfully represented Bell Canada and the National Football League in challenging the CRTC’s order prohibiting the simultaneous substitution of Canadian and American television commercials for the Super Bowl before the Supreme Court of Canada: Bell Canada v. Canada (A.G.), 2019 SCC 66. Brandon also successfully represented Bell Canada in challenging the validity of the CRTC’s Wholesale Code under the Broadcasting Act before the Federal Court of Appeal: Bell Canada v. 7265921 Canada Ltd., 2018 FCA 174. As well, he successfully obtained a permanent injunction prohibiting the unauthorized retransmission of conventional television services over the Internet in violation of the Copyright Act: 2251723 Ontario Inc. v. Bell Canada, 2016 ONSC 7273.

Commercial Disputes

Brandon has acted in several major commercial disputes. He has particular experience with the contractual principle of good faith, having successfully acted as lead counsel to the appellant in C.M. Callow Inc. v. Tammy Zollinger, 2020 SCC 45, where the Supreme Court of Canada established the governing legal framework for the duty of honest performance. Previously, Brandon successfully acted as counsel to the appellant in Bhasin v. Hrynew, 2014 SCC 71, where the Supreme Court of Canada first introduced the duty of honest performance and the broader organizing principle of good faith. As well, he acted as counsel to the intervener, the Canadian Association of Counsel to Employers, in Matthews v. Ocean Nutrition Canada Ltd., 2020 SCC 26, where the Supreme Court of Canada undertook its most extensive analysis of the principle of good faith in the employment setting after Bhasin.

Brandon also successfully represented the respondent in the leading Canadian case on the tort of fraud, Bruno Appliance and Furniture, Inc. v. Hryniak, 2014 SCC 8, and represented the appellant in the landmark summary judgment case of Hryniak v. Mauldin, 2014 SCC 7. In addition, he represented the intervener, the Insolvency Institute of Canada, in Chandos Construction Ltd. v. Deloitte Restructuring Inc., 2020 SCC 25, where the Supreme Court of Canada recognized the anti-deprivation rule in bankruptcy and insolvency proceedings.

Class Actions

Brandon regularly represents clients in class actions. He appeared before the Supreme Court of Canada on behalf of the IMAX appellants in the securities class action trilogy (Canadian Imperial Bank of Commerce v. Green, 2015 SCC 60), and on behalf of the Microsoft respondents in the competition class action trilogy (Pro-Sys Consultants Ltd. v. Microsoft Corporation, 2013 SCC 57). He also acted as lead counsel for the intervener, the Canadian Chamber of Commerce, in TELUS Communications Inc. v. Wellman, 2019 SCC 19, where the Supreme Court of Canada upheld the enforceability of arbitration clauses in agreements with business customers in the class action setting. In addition, he acted as lead counsel for the intervener, the Canadian Gaming Association, in Atlantic Lottery Corp. Inc. v. Babstock, 2020 SCC 19, where the Supreme Court of Canada rejected the existence of waiver of tort as an independent cause of action and clarified the law regarding other forms of class disgorgement relief. Brandon previously served on the executive committee of the Class Actions Section of the Ontario Bar Association.

His class actions often involve cross-border issues. He successfully acted as lead counsel before the Ontario Court of Appeal in dismissing part of a proposed $400 million negligence class action alleging pure economic loss from a foreign import ban involving genetically modified corn: Darmar Farms Inc. v. Syngenta Canada, 2019 ONCA 789. He also defeated a proposed $7 billion (USD) secondary market securities class action in the Ontario Court of Appeal based on lack of territorial jurisdiction over the foreign securities issuer: Yip v. HSBC Holdings plc, 2018 ONCA 626.

Product Liability

Brandon has achieved particular success in product liability cases. He has defeated certification in three prescription pharmaceutical class actions, including the first such cases where certification was refused in British Columbia and Ontario: Price v. H. Lundbeck A/S, 2022 ONSC 7160; Charlton v. Abbott Laboratories, Ltd., 2015 BCCA 26; Martin v. AstraZeneca Pharmaceuticals PLC, 2012 ONSC 2744, aff’d 2013 ONSC 1169 (Div. Ct.). As well, he successfully represented the defendants in the first pharmaceutical class action to be defeated on summary judgment in Canada: Wise v. Abbott Laboratories, Ltd., 2016 ONSC 7275.

Academic and Professional Involvement

Brandon is an active member of Canada’s legal academic and professional communities. He has taught Advanced Contracts at the Western University Faculty of Law since 2012, and Economic Torts at the University of Toronto Faculty of Law since 2015. 

Brandon has published 20 articles in the Advocates’ Quarterly, Alberta Law Review, Annual Review of Civil Litigation, Banking and Finance Law Review, Canadian Bar Review, Canadian Business Law Journal, Commercial Litigation, Corporation Litigation, Collective Redress in Europe – Why and How? and Supreme Court Law Review. Many of his articles have been cited by Canadian courts, including the Supreme Court of Canada in Uber Technologies Inc. v. Heller, 2020 SCC 16; Bell Canada v. Canada (A.G.), 2019 SCC 66; v. Goldhar, 2018 SCC 28; A.I. Enterprises Ltd. v. Bram Enterprises Ltd., 2014 SCC 12; and Tercon Contractors Ltd. v. British Columbia (Transportation and Highways), 2010 SCC 4, as well as the United Kingdom Supreme Court in Pakistan International Airline Corporation v. Times Travel (UK) Ltd., [2021] UKSC 40.

He is a frequent speaker on legal issues, having presented for the Advocates’ Society, the Canadian Bar Association, the Canadian Centre for Ethics & Corporate Policy, Canadian Defence Lawyers, the Canadian Energy Law Foundation, the Canadian Institute, the Canadian Transport Lawyers Association, the Commons Institute, the Law Society of Ontario, the Law Society of Prince Edward Island, the Law Society of Saskatchewan, the Ontario Bar Association, Osgoode Professional Development, the Prospectors and Developers Association of Canada, the Runnymede Society, the Toronto Lawyers’ Association and the University of Toronto Faculty of Law.


Brandon obtained his LL.B. (Honours) from the University of Toronto in 2003, where he received the Fasken Martineau DuMoulin LLP Award for Academic Excellence in first year, and graduated with Honours Standing. He also obtained his MA in philosophy from the University of Toronto in 1999 and his BA (First Class Honours) in philosophy from Queen's University in 1998.

Representative Cases


Speaking Engagements

  • Co-Chair, Osgoode Professional Development, The 1st National Annual Symposium on Canadian Contract Law: Essential Updates and Practical Analysis (December 1, 2022)
  • Speaker, Osgoode Professional Development, The 17th Annual National Forum on Administrative Law and Practice, “The Intersection of Administrative Law and Regulation with Freedom of Expression” (October 18, 2022)
  • Speaker, Law Society of Prince Edward Island, Professional Development Day, “Duty of Good Faith: Recent Case Law” (June 24, 2022)
  • Panelist, Ontario Bar Association, “Advocacy Primer: Drafting Persuasive Facta” (January 18, 2022)
  • Panelist, Toronto Lawyers’ Association, “Good Faith in Contract Performance” (October 27, 2021)
  • Co-Chair, Osgoode Professional Development, The Principle of Good Faith in Contracts: Essential Updates and Practical Analysis in Canadian Contract Law (September 23, 2021)
  • Speaker, Law Society of Saskatchewan, The Litigator’s Seminar: Updates & Tools for Making Your Practice Better, “Cross-Examination on Affidavits” (June 10, 2021)
  • Panelist, Ontario Bar Association, “Callow and Wastech: Examining the Recent SCC Decisions on the Duty of Good Faith” (March 25, 2021)
  • Speaker, The Canadian Institute, 20th Annual Conference on Advanced Administrative Law & Practice, “Statutory Appeal Rights Post-Vavilov” (October 28, 2020)
  • Panelist, Canadian Transport Lawyers Association, 2020 Annual General Meeting and Educational Conference, “Judicial Review” (October 22, 2020)
  • Panelist, Osgoode Professional Development, 15th Annual National Forum: Administrative Law and Practice, “Vavilov in Practice” (October 6, 2020)
  • Panelist, The Runnymede Society, 2020 Law and Freedom Conference, “Administrative Law: Vavilov and the Supreme Court” (February 29, 2020)
  • Panelist, The Advocates’ Society, “Bell and Vavilov: The SCC's impact on standard of review, administrative law and arbitration decisions” (February 14, 2020)
  • Co-Chair, The Canadian Institute, 19th Annual Conference on Advanced Administrative Law & Practice (October 29-30, 2019)
  • Panelist, The Canadian Institute, 19th Annual Conference on Advanced Administrative Law & Practice, “Contractual Disputes and Judicial Review” (October 29-30, 2019)
  • Moderator, Toronto Lawyers’ Association, “Contractual Interpretation: Five Years after Sattva” (April 9, 2019)
  • Panelist, Ontario Bar Association, Essential Update on Procedural Fairness: 20 Years Post-Baker, “Where Do We Stand on Procedural Fairness” (February 5, 2019)
  • Speaker, Canadian Bar Association, “The Art of Persuasive Writing”, CBA Skilled Lawyers Series 2019 (January 29, 2019)
  • Speaker, Canadian Bar Association, “The Art of Persuasive Writing”, CBA Skilled Lawyers Series 2017 (April 6, 2017)
  • Speaker, Canadian Defence Lawyers, Defending Products Claims, “Causation” (February 22, 2017)
  • Speaker, Canadian Energy Law Foundation, Jasper Research Seminar, “Honour Among Businesspeople: The Duty of Good Faith and Contracts in the Energy Sector” (June 18, 2015)
  • Panelist, PDAC International Convention 2015, Legal Challenges Facing the Mining Industry Today, “Review of Important New Decisions Affecting Contracts, Arbitration and Dispute Resolution in the Mining Industry” (March 2, 2015)
  • Speaker, The Commons Institute, 240 Minutes on Cross-Border Litigation Strategies, “Cross-Border Insolvency Procedures” (February 19, 2015)
  • Panelist, Canadian Centre for Ethics & Corporate Policy, “Bhasin v. Hrynew: SCC Establishes General Duty of Good Faith in Commercial Contracts” (February 3, 2015)
  • Panelist, Osgoode Professional Development, “Bhasin v. Hrynew: The New Duty to Act Honestly” (January 19, 2015)
  • Panelist, Law Society of Upper Canada, 17th Biennial National Conference, New Developments in Communications Law and Policy, “The Value for Signal Case and its Implications” (May 1, 2014)
  • Chair, Canadian Defence Lawyers, “Torts: Unlawful Interference with Economic Claims” (April 23, 2014)
  • Speaker, The Commons Institute, Supreme Court & Constitutional Litigation, “Obtaining Leave to Appeal to the Supreme Court of Canada in Commercial Cases” (June 27, 2013)
  • Panelist, The Canadian Institute, Western Forum on Employment Law, “What You Need to Know to Effectively Use Drug and Alcohol Testing Lawfully” (May 7, 2013)
  • Panelist, Osgoode Professional Development, National Forum on Administrative Law and Practice, “Judicial Review of Commercial Decisions” (October 24, 2012)
  • Panelist, University of Toronto, Faculty of Law, 41st Annual Workshop on Commercial and Consumer Law, “When Should Courts Fill Gaps in Commercial Contracts? Reactions to Lord Hoffmann’s Judgment in Belize Telecom Ltd.” (October 14, 2011)