Madeleine Grace Worndl

Madeleine is an associate in our Disputes group. She maintains a broad civil and commercial litigation practice with a focus on corporate and securities disputes.

Madeleine’s experience includes class action defence, capital markets enforcement including Ontario Securities Commission investigations, as well as matters before the Ontario Capital Markets Tribunal and British Columbia Securities Commission, commercial arbitration, shareholder and corporate governance disputes, government and internal investigations, and other general commercial litigation.

Madeleine writes extensively on a range of legal topics including corporate and securities law, commercial arbitration, class actions and constitutional law. Her work has been published in the Class Action Defence Quarterly (June 2026 Edition), the Annual Review of Civil Litigation, 2024 Edition (Thomson Reuters), the Toronto Law Journal (March 2025 Edition) and Key Developments in Environmental Law, 2023 (Thomson Reuters).

Madeleine obtained her J.D. from Osgoode Hall Law School, where she graduated in the top 3% of her class and received several academic awards.

Prior to law school, Madeleine worked in the Office of Mergers & Acquisitions at the Ontario Securities Commission.

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