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 March 10, 2026
AI transactions: why traditional approaches fall short and how to adapt
AI has moved from a diligence consideration to a central driver of deal thesis and valuation in technology transactions.
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Osler Update March 2, 2026
PE Points – Winter 2026
PE Points brings you the latest legal insights and important news to keep you up to date on the ever-evolving private equity landscape.
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Osler Update January 22, 2026
Secondary transactions in private equity: planning, governance and exit readiness
Considerations for investors seeking efficient exit strategies and capital deployment.
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Osler Update January 13, 2026
Navigating the ‘silver tsunami’: how search funds are redefining succession planning in the Canadian SME market
Canada’s founder-led SME market is approaching a demographic inflection point.
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Stay up to date with our latest insights
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 February 19, 2026
Osler welcomes 11 new partners and three new counsel in 2026
Congratulations to our 11 new partners and three new counsel from our offices in Toronto and Montréal.
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Osler News February 12, 2026
Osler recognized as a leading firm in Chambers Global 2026 Guide
Osler has once again been recognized as a leading firm in the Chambers Global Guide, which evaluates firms based on the sophistication of their...
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Media Mentions January 15, 2026
Bay Street raises the most money in 15 years despite economic uncertainty – Financial Post
While capital markets are off to a strong start in 2026, stability is needed for that to continue, says Rosalind Hunter, partner and Co-Chair of...
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Osler News November 21, 2025
Amelia Miao and Alexandre Fallon named 2025 Lexpert Rising Stars
Congratulations to Amelia Miao and Alexandre Fallon on being chosen as 2025 Lexpert Rising Stars: Canada’s Leading Lawyers Under...
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