François Mainguy

Lawyer, Partner - Montréal

Quebec Bar 2002
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François Mainguy practices in the areas of insurance law, civil and commercial litigation, transportation law and individual labour relations. He specializes in developing and implementing strategic trial advocacy tactics.

François also acts as an official mentor for articling students and is responsible for all students-at-law in Langlois Lawyers’ Montréal office.

Representative Work

  • Langlois Contributes to the Transformation of Forestville into Hollywood

    Forestville, a town in the Quebec’s Upper North Shore region, was partially transformed into a Hollywood set during the filming of a TV series based on the best-selling novel The truth About the Harry Quebert Affair. This project was made possible thanks to the efforts and expertise of a team of Langlois Lawyers consisting of François Mainguy, a lawyer, partner, and Pascal Archambault, a lawyer at the firm, who assisted the company that owned part of the filming location in reaching an agreement between it and the producers of the series.

Represented CN in several civil and commercial liability matters.

Acted for the defence in major professional liability cases.

Pleaded precedent-setting cases involving non-unionized employees and latent defects before the Quebec Court of Appeal.




Other Publications

2020 – “Commentaire sur la décision Ferme Robert Séguin & Fils 2005 inc. c. Hobé – La violation du pacte de préférence : le rôle du courtier et l’évaluation du préjudice subi par l’acheteur” (Commentary on the decision in Ferme Robert Séguin & Fils 2005 inc. v. Hobé – Breach of the pact of preference: the role of the broker and assessment of the prejudice suffered by the buyer), co-authored with Élisabeth Lachance, Repères, EYB2020REP2935, April 2020 (PDF in French only).

2008 – Le Droit du travail du Québec (Québec Labour Law), Robert P. Gagnon, 6th edition, Les Éditions Yvon Blais 


Langlois Knowledge


2005 – “Unloading demurrage”, 19th Annual Transportation Innovation and Cost Saving Conference

Professional Associations

Since 2002 – Junior Bar Association of Montreal (JBAM)     

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