François D. Gagnon

Perry Kliot has a diverse commercial practice, with specific expertise in mergers and acquisitions, licensing and distribution, venture capital and traditional debt financing. He also has extensive experience dealing with start-up companies and has counselled such companies through their various stages of development. In so doing he has drafted numerous complex shareholder and joint venture agreements, and been involved in many international expansions. Perry’s clientele is broad based,...

Mylany David practices commercial and real estate law, specializing in commercial, real estate and industrial transactions, and in the development and implementation of energy and infrastructure projects. She is also a member of the firm’s Board of Directors. Mylany represents real estate promoters, project developers, financial institutions, lessors and lessees, advising them on the myriad issues inherent in developing and completing projects, which can involve acquiring the necessary ...

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...

Peter Riddell's practice is focused on mergers and acquisitions, joint venture and other complex commercial arrangements, carve-out transactions, and corporate and commercial law. He represents clients in various industries, including aerospace, agriculture, technology, pharma, renewable energy and entertainment.Peter has developed a relatively broad corporate practice ranging from advising large multinational corporations in the context of cross-border M&A, to smaller emerging scale-ups ...

Jean-François Gagnon is the Chief Executive Officer of Langlois Lawyers. He is also a member of the firm’s Executive Committee and Board of Directors. His practice focuses on complex commercial litigation, corporate governance, strategy, crisis management, ethics and deontology. He has wide-ranging experience in matters involving directors’ and officers’ liability, the management of not-for-profit organizations, construction law and insurance law. Jean-François...

Me Frédéric Bérard holds a Doctorate in Law (LL.D., Université de Montréal, Unanimous Mention of Excellence and Dean’s Honour List), a Master’s Degree in Political Science (M.A., McGill University), and a Bachelor of Laws (LL.B., Université de Montréal, Dean’s Excellence List). He also pursued postdoctoral studies in Philosophy at Université Laval. After working at Stikeman Elliott and Woods, he founded, in 2025, Fr&eac...

Pierre-Louis Le Saunier is a partner in the Tax Group whose practice primarily focuses on tax dispute resolution and litigation. Pierre-Louis regularly represents clients before tax authorities and courts in cases involving domestic and international matters such as the general anti-avoidance rule (GAAR), corporate reorganizations, investment structures and funds, transfer pricing, trusts, family holdings, municipal taxes, research and development tax credits, voluntary disclosures, judicial ...

Jean-Sébastien Clément is a partner in the firm's Montréal office. His practice has been focusing on aboriginal law for more than fifteen years with a particular interest for matters pertaining to self-governance, natural resources, forestry, education, socio-economic development, administration of justice, environment, land regime and health and social services. During his career, he has acted and played a major role in many litigation cases including constitutional case...

Antoine Bigenwald, partner, has specialized in construction law and dispute prevention for more than 20 years. He represents all participants in the construction industry, from project owners to subcontractors, including architects, engineers, promoters, general contractors, sureties, EPC Consortium and international firm. He has considerable experience in complex litigation cases with multiple parties and lengthy trials. For the past several years, his practice has focused on claims for dela...

Sébastien Richemont is a seasoned litigator within the Litigation and Dispute Resolution group in Montreal. His main areas of practice are class actions, shareholders disputes, arbitration, manufacturers and professional liability, contractual litigations and securities matters. With 25 years of trial and dispute resolution experience, Sébastien has leading-edge knowledge that allows him to understand the legal issues that clients may face while having practical know-how to supp...