Blake, Cassels & Graydon LLP’s interdisciplinary cannabis practice stands out for its broad scope of regulatory and transactional expertise, as well as for its national platform, which draws on industry specialists across the country. Key figures in Montreal are regulation and litigation partner Patrick Lapierre and corporate and commercial associate Renée Tousignant. In Toronto, regulatory specialist Pei Li and IP-focused counsel Henry Bian are key contacts. In October 2025, former department head Tricia Kuhl left the firm.
Legal 500 Editorial commentary
Key clients
- Rose LifeScience
- KPMG
- Aleafia Group
- Canaccord Genuity Corp
- RIV Capital
Work highlights
Advised Rose LifeScience on shareholder matters, corporate reorganizations, share sales, and ongoing commercial matters.
Advised KPMG on a proposed class action claiming that misrepresentations with respect to unlicensed growing and storage of cannabis caused CannTrust’s share price to drop during 2019.
Acted for the Court-appointed Monitor in the CCAA proceedings of the Heritage Group.
Other key lawyers
Patrick Lapierre; Renée Tousignant; Pei Li; Henry Bian