Lawyer Profile Detail

Sean D. Sadler






[email protected]



Osgoode Hall Law School
University of Windsor


Ontario, 1989


Sean Sadler is a partner in the Securities Regulation & Investment Products Group of McCarthy Tétrault LLP in its Toronto office.

Since joining the firm in 1989, he has been primarily engaged in a securities trading and adviser regulation practice, with particular emphasis on advising Canadian and non-resident dealers and advisers on the offering of their services in Canada, including structuring and regulation of collective investment vehicles and the public and private offering of investment products and securities, retail mutual funds, institutional pooled funds, hedge funds, closed-end funds, separately managed accounts, wrap accounts, wealth management services, family offices and registered education savings plans.

Mr. Sadler also regularly advises on securities law/IIROC/MFDA compliance and enforcement matters, and on white collar defense, internal investigations, voluntary and whistle-blowing disclosures with respect to matters involving securities activities. Mr. Sadler also regularly advises registrants on private placements, commodity futures and OTC derivatives trading, acquisitions, divestitures and reorganizations of registrants and the merger of investment fund complexes and the establishment of investment fund businesses. Mr. Sadler has, together with local counsel, assisted clients in establishing or restructuring investment funds in jurisdictions outside Canada including, Bermuda, British Virgin Islands, Cayman Islands and Mauritius.

Earlier in his career, he was seconded as legal counsel to the Registration Section of the Capital Markets Branch of the Ontario Securities Commission and to the Fixed Income Group of CIBC Wood Gundy Securities Inc.

For many years, Mr. Sadler has been a special lecturer in various securities law topics at the University of Windsor, the University of Western Ontario, Dalhousie University and Queen’s University. For over 20 years, he has been a co-editor of LexisNexis’ Annotated Ontario Securities Legislation. He is also a co-author of CCH’s Canadian Securities Regulatory Requirements Applicable to Non-Resident Broker-Dealers, Advisers and Investment Fund Managers, a handbook of Canadian securities regulatory requirements for non-resident securities firms published in 2012. Mr. Sadler is also co-author of a chapter in Practising Law Institute’s treatises, Broker-Dealer Regulation and Investment Adviser Regulation, and a chapter in the International Comparative Legal Guide to: Alternative Investment Funds 2017 (full chapter can be viewed by clicking here).

Mr. Sadler is recognized in the current edition of Chambers Canada as a leading lawyer in the area of investment funds. He appears in the most recent edition of The Best Lawyers in Canada in the areas of mutual funds law, private funds law and securities law, in the International Who’s Who of Private Funds Lawyers, in the 2014 Who’s Who Legal: Canada and the 2014 Who’s Who Legal 100 in the area of private funds.

He received his BA from the University of Toronto, his JD from the University of Windsor and his LLM in banking and financial services law from the Osgoode Hall Law School. Mr. Sadler was called to the Ontario bar in 1989.



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