Daniel Baum

Lawyer - Montréal

Québec Bar 2010
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Daniel Baum is a member of the litigation group at the Montréal office of Langlois.

A versatile litigator, Daniel acts in a wide array of commercial and public law disputes. He notably handles matters involving insolvency, commercial fraud, administrative law and regulatory compliance. Daniel has experience before all levels of Quebec and federal courts, including the Supreme Court of Canada.

He is a sessional lecturer in written and oral advocacy at Université de Montréal’s Faculty of Law.

Before joining Langlois, Daniel served as litigation counsel for the federal Crown.


University of Montréal, Master of Laws, LLM, Common Law, 2010

University of Montréal, Bachelor of Laws, LLB, Civil law, 2009

McGill University, Bachelor of Arts, BA, Political Science, 2005

Representative Work

  • Victory for a Langlois Client at the Supreme Court of Canada

    Langlois’ appellate advocacy group acted as advisory counsel to the appellant in the context of the recent decision of the Supreme Court of Canada in Teva Canada Ltd. v. TD Canada Trust, a significant decision in banking and fraud law.

Commercial Litigation / Extraordinary Remedies

Counsel for a junior mining company in a dispute with Osisko Mining Corporation arising from the 2014 acquisition of the Canadian Malarctic Mine by Yamana Gold and Agnico Eagle.

Securities / Class Actions

Counsel for the former Chief Financial Officer of SNC Lavalin in defence of a multi-jurisdictional class action alleging misrepresentations under the Securities Act

Administrative Law / Class Actions

Counsel for the Chief Adjudicator of the Indian Residential Schools Adjudication Secretariat in matters involving the Indian Residential Schools Settlement Agreement (“IRSSA”).

Administrative law / Regulatory Investigations

Counsel for a multinational pharmaceutical company in a RAMQ investigation and related judicial proceedings.

Extraordinary Remedies

Counsel for one of Canada’s largest energy companies in proceedings to obtain the disclosure of information identifying online wrongdoers


Counsel for a multinational pharmaceutical company before Supreme Court of Canada in a matter involving the Bills of Exchange Act.

Commercial Litigation

Counsel for one of Canada’s biggest law firms in $22.5M professional liability claim.


Counsel for a subsidiary of Rio Tinto in the CCAA filings of Cliffs Québec in respect of the Bloom Lake and Wabush iron ore mines.


Counsel for several Canadian landlords in the pan-Canadian CCAA proceedings of Laura’s Shoppe.



Press Releases

Other Publications

Coauthor with Sean Griffin of the article “Corporate responsibility: What happens abroad doesn’t stay there”, The Lawyer’s Daily, February 15, 2018


Kidney Foundation of Canada – Québec Board of Directors

Professional Associations

Lord Reading Law Society 

Young Bar Association of Montréal

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