Christian Lachance

Caroline Émond is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Caroline, 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 Caroline is held by other top lawyers in the same geographic and legal practice area.

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...

Jason Paperman is a partner in the Corporate Group. His practice focuses primarily on Canadian and cross-border mergers and acquisitions, private equity, and corporate finance transactions. Jason regularly advises private and public companies as well as investors, both domestic and multinational, across a wide range of industries, in connection with acquisitions, divestitures, reorganizations, and other strategic transactions. He also has extensive experience working with private equity funds...

Guillaume Laberge is a member of the Administrative law group. His practice focuses primarily on administrative and constitutional law. In recent years, Mr. Laberge has acquired significant experience in several specialized areas, such as access to information, privacy, professional law and disciplinary law. He regularly represents and advises public and private companies, including professional orders and public bodies, on matters relating to administrative law litigation, constitutional law...

Marie-Pier Gagnon Nadeau practises as a member of the Litigation and Dispute Resolution Group at our Montreal office. She mainly defends class actions in civil liability, product liability, securities, consumer law and competition law. In the context of multi-jurisdictional class actions, proceeding simultaneously before the courts of several provinces, she has worked successfully to coordinate strategies designed to limit the risks for defendants, and even to promote the resolution of disput...

Marianne Plamondon, MBA, CHRP, is a partner in the Montréal office of Langlois Lawyers and is also a member of the firm’s Board of Directors. She specializes in labour and employment law, particularly in the interpretation and application of collective agreements, occupational health and safety, psychological harassment, the protection of personal information, pay equity, employment insurance and human rights. She has been active in several files involving individual and collecti...

Yves Rocheleau is a partner and a member of the Board of Directors of the firm. He focuses his practice on mergers and acquisitions, corporate law, and commercial law. He advises many corporations at every step of their growth, particularly with respect to their incorporation and organization, the drafting of shareholder agreements, financing, equity participation, mergers and acquisitions. His expertise is also sought in the negotiation and drafting of various business agreements and the res...

Gerry Argento’s practice is predominantly focused on construction law with experience in both litigation and contractual matters. He advises owners, developers, general and specialized contractors, suppliers of materials as well as industry associations, and is regularly called up to represent his clients before the courts and arbitral tribunals. He also advises in relation to the drafting, negotiation and review of all types of construction contracts. Gerry is active in a broad range o...

Patrick Essiminy is a partner and Head of the Montréal office’s Employment & Labour Group and a member of the Montréal Office's Management Committee. Among his clients he is known for his strategic and practical advice, and for a practice style that is both effective and oriented to business priorities. Patrick practices in all areas of employment and labour law, for both provincially and federally regulated companies. More specifically, he represents his clients befor...

Joanie is a partner within the Intellectual Property (IP), Agribusiness, Food and Beverage, and Life Sciences groups. She specializes in high-stakes IP litigation, and in the efficient elaboration and protection of IP portfolios. Joanie has an extensive knowledge of the IP legislative and regulatory landscape. She sees IP as more than obtaining, registering or using patents, industrial designs, trademarks or copyrights; for her, IP a way to advance knowledge, obtain return on investment, fina...