Douglas Hugh John Montgomery

Douglas Montgomery is a thoughtful and strategic litigator at Paliare Roland Rosenberg Rothstein LLP, where his practice encompasses complex contractual and commercial disputes, public and administrative law, and professional discipline and regulation. He has represented individuals, corporations, community organizations and regulators at every level of court in Ontario, as well as the Federal Court, the Federal Court of Appeal, and the Supreme Court of Canada.

Quadrangle v. Attorney General of Canada : represented a major telecommunications investor in a complex trial against the Government of Canada alleging negligence and negligent misrepresentation, ultimately securing a judgment worth approximately $555 million (excluding costs and interest): 2025 ONSC 4526

Power Workers Union v. Canada (Attorney General) : represented a trade union in a complex arbitration involving drug and alcohol testing in nuclear facilities, and in a related constitutional challenge in Federal Court to a regulatory instrument imposing drug and alcohol testing in nuclear facilities. Obtained successive interim stays from the arbitrator and the Federal Court of the implementation of drug and alcohol testing in nuclear facilities, pending final disposition: 2022 FC 73 , 2023 FCA 215 .

Warren v. Canaccord Genuity Corp : brought successful action for wrongful dismissal and breach of contract on behalf of an investment banker. Obtained over $2.5 million in damages following successful trial: 2026 ONSC 547

Re Eastern Meat Solutions Inc. et. al. : represented a commercial real estate developer in successfully resisting an injunction to prevent the developer from drawing on a letter of credit in the context of a CCAA proceeding.

Royal College of Dental Surgeons of Ontario v. Alsoma : brought contempt proceedings on behalf of a regulator against an unlicensed practitioner, ultimately securing a significant penalty: 2024 ONSC 1924 .