Osler’s M&A group, consistently ranked Band 1 in Chambers Canada, advises on all types and sizes of transactions and has deep experience from decades of deal flow, be it for domestic, cross-border or multinational companies. Our lawyers have designed and implemented innovative legal structures that have revolutionized the M&A landscape and continue to provide valuable solutions for our clients.
Our firm can be trusted to provide clients with the right level of legal advice required to lead a successful deal, for several reasons:
- Band 1 ranking in Chambers Canada, one of the world’s leading legal industry ranking publications – As well, for a number of years Osler has been the highest ranked Canadian law firm in M&A league tables published by Bloomberg and LSEG (formerly Refinitiv). Our firm advises on domestic, cross-border, and multi-jurisdictional transactions involving public companies, private companies, private equity sponsors, emerging companies and start-ups, global conglomerates, pension funds, sovereign funds, and financial advisors.
- Breadth and depth of related expertise – Our leading M&A practitioners are complemented by top-ranked expertise in tax, competition/antitrust, securities/regulatory, banking and financial services, litigation, pensions, employment/executive compensation and all other specialized areas that are critical to a successful M&A transaction. Taxation, for instance, is integral to accomplishing strategic M&A initiatives and no other Canadian law firm has been so consistently recognized for the excellence of its tax practice.
- Client focus – Osler lawyers understand the business imperative behind a transaction and the business environments in which our clients operate. Our “client first” approach pervades every aspect of our firm culture and we bring that approach to the way we structure a deal, negotiate a deal, mitigate risk, and staff and efficiently manage files.
Key Contacts
Co-Chair
Partner, Corporate, Toronto
Co-Chair
Partner, Corporate, Toronto
Latest Insights
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Osler Update July 16, 2026
The PE playbook: translating AI risk into deal structure
Buying or investing in an AI company? Standard legal diligence isn't enough.
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Osler Update July 13, 2026
Continuation vehicles in private equity: structuring, governance and execution
Continuation vehicles are becoming an increasingly standard feature of the private equity toolkit.
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Osler Update July 3, 2026
CSA finalizes ‘access equals delivery’ model for continuous disclosure documents: practical implications for reporting issuers
A new access model introduced by the CSA provides an opportunity to provide electronic access to certain continuous disclosure documents.
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Osler Update June 3, 2026
CSA proposes to reshape share buybacks and shareholder reporting
We discuss the potential effects and considerations of these changes for issuers and significant shareholders.
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SubscribeAwards and Recognition
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Recognized in Corporate/M&A (Band 1); Corporate/Commercial: The Elite: Ontario (Band 1), Alberta (Band 1), British Columbia and Québec.
—Chambers Canada: Canada’s Leading Lawyers for Business: -
Recognized in Corporate/M&A (Band 1).
—Chambers Global: The World's Leading Lawyers for Business -
Recognized in Mergers & Acquisitions (Calgary, Alberta; Montreal, Quebec; Ottawa, Ontario; Toronto, Ontario).
—The Canadian Legal Lexpert Directory -
The Guide to the World’s Leading Financial Law Firms: Recognized in M&A (Tier 1).
—IFLR 1000
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National Corporate Firm of the Year – Canada, 2023, 2020 and 2017.
—IFLR Americas Awards -
Recognized in Corporate and M&A (Tier 1).
—Legal 500 -
#2 Canadian law firm by value and by deal count, H1 2025.
—Mergermarket -
#1 law firm for Canadian announced deals by Value; #2 law firm for Canadian announced deals by deal count, FY 2024.
—LSEG -
#1 Canadian law firm and #2 overall for Canadian announced deals by volume (value), FY 2024.
—Bloomberg
Their reputation as an M&A shop is virtually unrivalled. They have great bench strength and field multiple teams without anything slipping through the cracks. As a client, we are very well treated.
In the Media
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Osler News July 14, 2026
Osler ranked top Canadian law firm in H1 2026 M&A league tables
LSEG named Osler #1 for announced M&A deals with any Canadian involvement by value.
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Osler News June 3, 2026
33 Osler lawyers recognized in Lexpert Special Edition: Technology 2026
Osler is proud to announce that 33 of our lawyers are recognized in the Lexpert Special Edition: Technology 2026. This prestigious edition...
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Osler News May 8, 2026
Osler ranked among leaders in Q1 2026 M&A league tables
Osler has once again been ranked as a top Canadian law firm in M&A league tables for Q1 2026.
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Osler News May 6, 2026
Osler recognized at the 2026 Canadian Law Awards
Osler is proud to announce its recognition as a winner in four categories at the 2026 Canadian Law Awards
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