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Lavery Lawyers

Guy Lemay

Guy Lemay



  • Class Actions
  • Commercial Litigation
  • Labour and Employment
  • Mediation and Arbitration

WSG Practice Industries


Lavery Lawyers
Quebec, Canada



Guy Lemay is a counsel with extensive experience as a litigator and negotiator in the fields of class actions, employment and labour relations, civil and commercial litigation, pensions, and benefits.

Mr. Lemay represents only companies and organizations, which regularly retain his services to deal with problematic situations.

Since the 1990s, Mr. Lemay has expanded the scope of his professional activities to include class actions, acting exclusively for the defence. He has represented clients in more than forty class actions, many of which were national or international in scope. 

He was involved in the ?Duplessis Orphans? action, and has also been involved in actions against automobile manufacturers for manufacturing defects, life insurance companies for misrepresentations, and in class actions related to anti-trust, pension, consumer protection, environment, etc.

By virtue of his fields of expertise, Mr. Lemay appears before the Superior Court and the Court of Appeal of Quebec, the Federal Court, and the Supreme Court of Canada, in addition to many provincial and federal administrative tribunals.

Through his experience, he has developed in-depth knowledge of the different problems faced by companies and knows how to apply effective and proven solutions. He is also regularly sought after for his services as legal counsel and as an expert in business policies and ethics.


  • LL.L., Université de Montréal, 1965
Areas of Practice

Class Actions | Commercial Litigation | Labour and Employment | Mediation and Arbitration | Pension and Benefits

Professional Career

Professional Associations

Canadian Bar Association
Ordre des CRHA et CRIA du Québec (Certified Industrial Relations Counsellor (CIRC))
Canadian Pension and Benefits Institute

Professional Activities and Experience

  • Best Lawyer 2016
  • Best Lawyer of the Year 2014
  • Lexpert ANG
  • Best Lawyer 2017
  • Best Lawyer 2018
  • Best Lawyers 2019
  • Best Lawyers 2020


  • English title
  • The Ville de Montréal case - The Supreme Court examines the notion of handicap
  • Recognition of same sex spouses
  • English title
  • Increase in Class Actions for Violations of the Competition Act - How to Protect Your Business Today
  • English title
  • Are the Courts Distorting the Nature of Class Actions?
  • English title
  • English title
  • Watering down class actions? Not really...
  • English title
  • Class action and competition law: Toyota wins in the Court of Appeal
  • Watering down class actions? Not really?
  • Lavery, de Billy wins two class action lawsuits
  • Pensions: Good News from the Supreme Court of Canada!
  • The Wal-Mart Decision: The Supreme Court of Canada confirms that the collective dismissal of the employees of the Jonquière establishment constituted an illegal change in their conditions of employment under section 59 of the Labour Code[1]
  • Constructive dismissal revisited by the Supreme Court of Canada
  • Knowledge of English as a requirement for employment: A Tower of Babel
  • Bilingual candidate sought: The Court of Appeal clarifies the scope of this requirement in employment-related matters
  • “Senior managerial personnel” status under the Act respecting labour standards

WSG's members are independent firms and are not affiliated in the joint practice of professional services. Each member exercises its own individual judgments on all client matters.

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