Osler’s National Disputes team advises on and solves business-critical issues for Canadian, as well as global, organizations.
Best known for handling multijurisdictional class actions and complex corporate/commercial litigation, we defend major institutional clients on high-profile (“bet-the-company”), precedent-setting cases across various industries and at all levels of courts in Ontario, Alberta, Québec, British Columbia and most other provinces, as well as in the Federal Court and the Supreme Court of Canada. We regularly appear in hearings before a variety of provincial and federal tribunals, such as the Financial Services Tribunal, the Ontario Municipal Board, the Environmental Assessment Board and the Ontario and Alberta Securities Commissions and represent clients in various forms of alternative dispute resolution.
While always ensuring our clients are litigation ready, we help our clients develop effective risk management strategies to proactively address potential exposures and mitigate the threat of complex litigation. However, when litigation is unavoidable, we defend our clients in a strategic, coordinated and cost-effective manner. Osler’s Dispute Resolution & Risk Management team has experience in all types of disputes including constitutional and public law, corporate governance, securities, defamation, energy and natural resource, environmental, franchise, consumer protection, intellectual property, privacy, pension and benefits, product liability, professional negligence, tax disputes and white-collar defence. We also leverage the expertise of Osler Works – Disputes, our specialized litigation support group composed of multidisciplinary professionals with dedicated expertise in legal technology, process improvement and management, project management and eDiscovery services.
Key Contacts
National Chair
Partner, Disputes, Toronto
Latest Insights
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Osler Update June 24, 2025
Private right of access for relief from anti-competitive harm now in force in Canada
The new right of access under the Competition Act represents the broadest expansion of private enforcement of Canada’s competition laws in a...
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Blog June 23, 2025
Builders’ risk insurance: recent Ontario court decision confirms broad interpretation of coverage provisions
A recent Ontario judgment was protective of maintaining a broad interpretation of builders’ risk insurance coverage provisions.
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Osler Update June 19, 2025
Beyond borders: government grants itself powerful access to data, reduced oversight
Bill C-2 has far-reaching implications for both businesses operating in Canada and civil liberties.
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Blog June 18, 2025
U.S. DOJ issues new FCPA enforcement guidance and white-collar enforcement plan, with significant implications for Canadian businesses
Canadian companies should ensure they maintain robust internal controls to effectively respond to new U.S. FCPA guidelines.
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Osler News July 2, 2025
Osler lawyers recognized in Lexpert Special Edition: Health Sciences 2025
Osler is proud to announce that 10 of our lawyers are recognized in the Lexpert Special Edition: Health Sciences 2025. This prestigious...
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Osler News June 13, 2025
Osler recognized on BIV’s list of Biggest law firms in Metro Vancouver
Osler continues to grow and strengthen its presence in Vancouver, celebrating 10 years of excellence and innovation in the region. We are proud...
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Osler News June 10, 2025
Keith Marlowe, KC, joins Osler’s Disputes group as a partner
Keith is a veteran litigator whose broad practice focuses on corporate and commercial disputes, including cross-border disputes and class actions.
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June 2, 2025
Osler named one of the top pro bono law firms in Canada
Osler is honoured to be named a five-star pro bono firm by Canadian Lawyer magazine’s report which evaluates the contributions of lawyers donating...
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