Guy Du Pont Ad. E.

Martine Trudeau is a top attorney recognized by Best Lawyers in the practice area(s) of Class Action Litigation and Corporate and Commercial Litigation. Martine, 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 Martine is held by other top lawyers in the same geographic and legal practice area.

Marie-Claude Cantin is a partner in the Litigation and Dispute Resolution group and head of the Financial Products and Services team. In her litigation practice, she represents the interests of insurers and their insureds in different types of claims, leading her to work with a variety of clientele, from manufacturers and entrepreneurs to professionals like engineers, architects, land surveyors and insurance brokers. She acts before the courts in complex and far-reaching cases in a number of ...

Ms. Fournier is a partner-owner in the firm. She counsels and represents our clients before administrative and civil courts in matters pertaining to disciplinary measures, complaints to the CNESST, grievance arbitration, charter-related issues, psychological harassment claims and occupational health and safety matters. She previously worked for an organization where she gained extensive expertise in labour law in the field of education. She also acts as a lecturer and contributes to our vario...

François Fontaine has a wealth of experience as a litigator in civil, corporate and commercial litigation and penal procedure, including white collar crime and regulatory investigations, before all Quebec courts and the Supreme Court of Canada. Mr. Fontaine devotes a significant portion of his practice to representing clients before the courts and tribunals in administrative litigation (including injunctions and judicial review). Mr. Fontaine has a great deal of experience in fraud and...

Caroline Deschênes is a partner in the Montréal office of Langlois Lawyers. Her practice is focused on civil and commercial litigation, with a particular emphasis on class actions, privacy issues, access to information, construction law, product liability and professional liability. She represents various corporations before courts of first instance and appeal in Quebec, and before administrative tribunals. Caroline has acted in several class actions involving the protection of p...

Lawrence Witt is an experienced labour, employment and human rights law practitioner. He regularly acts on behalf of clients in labour and employment litigation matters before administrative tribunals, arbitration tribunals as well as first instance and appellate level courts. Lawrence has developed considerable expertise in electronic discovery and data preservation, the drafting and pleading of injunction applications seeking the enforcement of restrictive covenants, return of information a...

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,...

Charles Chevrette is a partner in the Corporate/Commercial group in our Montréal office. With nearly thirty years of experience, Charles has a particular expertise in private equity, mergers and acquisitions and venture capital. Over the years, Charles has been called upon to advise a wide range of private and public institutional investors on mergers and acquisitions or corporate financing and acquisitions, particularly in the technology sectors and in cross-border transactions. He re...

Stefan Chripounoff is a commercial litigation partner at the Montréal office of Langlois. His practice focuses on commercial litigation and on restructuring & insolvency. The current chair of the firm’s arbitration and ADR group, he acts in a significant number of large-scale files before all levels of the courts and arbitration tribunals. He also practices energy law and, over the past twenty years, he advised his clients on their natural gas purchase and sale contracts and ...

Barbara Sheng is a partner in the Corporate Group. Her practice is primarily focused on domestic and cross-border mergers and acquisitions involving both public and private companies and investment funds, corporate reorganizations and restructurings, and going private transactions. In 2014, Barbara practiced in the New York office of Stikeman Elliott. Barbara is a member of several firm committees, including the Montréal office’s Finance Committee and Knowledge Management and Leg...