Mathieu Tremblay

Isabelle Duval is a member of the Family, Personal and Estate Law group. She handles every aspect of family law, from divorce, separation, relocation and custody to child and spousal support. Isabelle holds a Juris Doctor in Common Law and a Master in Business Law from the Université de Montréal and has successfully argued many major cases, including longstanding cases, before the Superior Court and the Court of Appeal of Québec. She has developed expertise in divorces in...

Marie-Hélène Jetté, CHRP, a partner at Langlois Lawyers, has been representing and advising employers for over 25 years in the fields of labour and employment law, human rights and freedoms, and administrative law. Her skills are widely recognized in the industry, particularly in matters related to employment termination, psychological harassment, discrimination, labour standards and occupational health and safety. Clients regularly call upon Marie-Hélène to...

Melissa Tehrani is a top attorney recognized by Best Lawyers in the practice area(s) of Advertising and Marketing Law. Melissa, who practices law in Montréal, Quebec, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Melissa is held by other top lawyers in the same geographic and legal practice area.

Jonathan Warin is a member of the firm's Commercial Litigation Group and specializes in bankruptcy and insolvency, extraordinary remedies and realizing on security. He regularly intervenes in various insolvency cases, whether to represent institutional lenders, trustees or debtors in a restructuring and liquidation context. Mr. Warin also handles commercial litigation cases of all kinds, particularly shareholder remedies and injunctions. Mr. Warin is Head of Practice Litigation and Conflict R...

Nicolas Roche is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation. Nicolas, who practices law in Montréal, Quebec, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nicolas is held by other top lawyers in the same geographic and legal practice area.

With more than 35 years of experience, Sylvain Rigaud is a leading lawyer in bankruptcy, insolvency, financial restructuring, and related litigation. Sylvain has represented clients across a broad range of industries, including financial services, real estate, natural resources, pulp and paper, mining, energy, manufacturing, pharmaceuticals, life sciences, technology, retail, aeronautics, construction, aircraft financing, shipping, and admiralty. Sylvain has acted for all types of parties inv...

Reine Lafond is a partner-owner in the firm. As head of our occupational health and safety department, she works exclusively in this field. Her cutting-edge expertise was honed from her early career in the CSST’s legal department (now CNESST). Ms. Lafond provides our clients with strategic support and advice, and she represents them before the courts and administrative tribunals, including the Tribunal administratif du travail (TAT). She defends our clients' interests in matters related...

Sean Griffin is a partner in the litigation group in Langlois lawyers’ Montréal office and a member of the firm’s Board of Directors. His practice focuses on complex litigation involving constitutional, administrative and commercial law issues, as well as corporate and securities matters. With recognized expertise in defending public and private corporations, financial institutions and various entities active in the financial markets, including their directors and officers,...

Rachel Clément is a Lawyer, Partner and Co-chair of our Insurance Law Group. Her practice focuses on civil and professional liability matters, particularly on construction law. She represents insurance companies before the Quebec courts and her clients in various Alternative Dispute Resolution

Robert Korne is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law and Trusts and Estates. Robert, who practices law in Montréal, Quebec, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Robert is held by other top lawyers in the same geographic and legal practice area.