Lawyer Profile
Mason Poplaw
Montréal, Québec

Overview
Under the agreement of this take-private transaction worth C$9 billion, Boralex will continue to operate as an independent private company following closing.
Our Outlook Series 2026 provides forward‑looking analysis of the most important legal, regulatory, and market developments affecting Canadian organizations.
A leading litigator in high-profile disputes, Mason is experienced in complex commercial, corporate and securities matters.
Mason is a partner in the Montréal office. Known for his business acumen and broad experience as a corporate commercial litigator, his practice focuses primarily on corporate disputes, governance, securities, internal investigations, crisis management, insolvency, and restructuring.
Recognized for his ability to successfully manage litigation and investigations matters with a great deal at stake, Mason leverages his considerable corporate and financial industry knowledge to find practical solutions to complex disputes. Working with a range of clients including financial institutions, public and privately held corporations, and trustees, he takes a strategic approach to securities and banking class actions, financial product liabilities cases, financial frauds, corporate governance issues, plans of arrangement, liquidation, oppression remedies, complex contract disputes, and directors’ liabilities.
Practice Areas
Bar Information
Called to the bar: 1987 (QC)