Mark has a wide-ranging corporate-commercial litigation practice, with expertise in complex contractual disputes, class actions, tax litigation, complex financial matters, and insolvencies.
Mark is committed to client service, identifying and obtaining practical results that meet his clients’ objectives, whether in the courtroom or the boardroom. He is a co-leader of Osler’s case assessment team, which specializes in analyzing and valuing complex disputes. He has appeared before courts across Canada, including the Ontario Superior Court of Justice (Commercial List), Court of Appeal for Ontario, Tax Court of Canada, Federal Court of Appeal and Supreme Court of Canada.
Representative Work
- Represented Hino Motors, Ltd. in a class action related to alleged emissions issues.
- Represented Economical Mutual Insurance Company in one of the few common issue trials in Canada. Case claimed for business interruption insurance coverage arising from the COVID pandemic. Case dismissed at trial, upheld on appeal.
- Represented the senior secured lenders in receivership proceedings against the developer of “The One” condominium project.
- Represented Economical Mutual Insurance Company in a trial related to entitlement to benefits from Economical’s demutualization.
- Represented Fiera Foods International in the precedent setting trial on an input tax credit dispute related to the use of employment agencies.
- Represented Cameco Corporation in the precedent-setting trial of a transfer pricing dispute in the Tax Court of Canada relating to Cameco’s international sales structure, and the subsequent appeal to the Federal Court of Appeal.
- Represented Loblaws Companies Limited in the precedent-setting trial of a tax dispute in the Tax Court of Canada relating to Loblaw’s international financial affiliate, and the subsequent successful appeal to the Federal Court of Appeal.
- Represented Cameco Corporation in the precedent-setting trial of a transfer pricing dispute in the Tax Court of Canada relating to Cameco’s international sales structure, and the subsequent appeal to the Federal Court of Appeal.
- Represented Loblaws Companies Limited in the precedent-setting trial of a tax dispute in the Tax Court of Canada relating to Loblaw’s international financial affiliate, and the subsequent successful appeal to the Federal Court of Appeal.
Latest Insights
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Osler Update February 18, 2021
Supreme Court denies Crown’s request for leave to appeal Cameco transfer pricing decision
On February 18, 2021, the Supreme Court of Canada declined the Crown’s application seeking leave to appeal the June 2020 decision of the Federal...
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Osler Update June 29, 2020
Federal Court of Appeal dismisses Crown’s appeal in Cameco
The Federal Court of Appeal upheld the Tax Court’s decision that Cameco’s transactions with its Swiss subsidiary were on arm’s length terms...
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Awards and Recognition
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Top Appellant at the 2013 Bowman Tax Moot
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Winner of the 2012 International Competition in Mediation Advocacy
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Recipient of the Blake, Cassels & Graydon LLP Award, the Davies Ward Phillips & Vineberg LLP Award in Commercial Law, Business Associations and Tax, and the Borden Ladner Gervais LLP Professional Excellence Award
Media Mentions
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Osler News February 16, 2024
Osler welcomes seven new partners and one new counsel in 2024
Osler is pleased to announce the addition of seven new partners and one new counsel across our offices in Toronto, Montréal, Calgary and Vancouver,...
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Osler News November 7, 2022
A fresh take on applying decision trees to case assessments in litigation
Decision trees allow lawyers to explain a dispute visually, with easily digestible language and numbers. A single page can convey as much information...
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Osler News May 12, 2021
Osler’s National Litigation team recognized at the Benchmark Canada Awards 2021
Osler is proud to announce that our National Litigation team has been recognized at the 2021 Benchmark Canada Awards.
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Community Involvement
- Osgoode Hall Mooting Society, Treasurer
- Woodgreen Debt Clinic, Debt Advisor
Credentials
Education
- Osgoode Hall Law School, J.D.
- University of Western Ontario, M.A.
- University of Victoria, B.Sc. (Hons.) (With Distinction)
Languages
- English
Professional Affiliations
- Ontario Bar Association
- Canadian Bar Association
- Law Society of Ontario
