Sandra Mastrogiuseppe

Catherine Biron, CPHR, is a partner in the Montréal office of Langlois Lawyers. She advises and represents businesses on all aspects of labour and employment law, human rights, company policies, health and safety and working relations. Catherine holds a master’s degree in labour law and human rights law from the University of Oxford (England) and she is a graduate of McGill’s Executive Institute, as well as CPHR. She represents and counsels unionized and non-unionized busin...

Richard R. Provost is a partner in the Montréal office of Langlois Lawyers. He concentrates his practice in litigation primarily in the areas of insurance law, professional and product liability, construction law and commercial law. He has acted for clients in arbitration committees and at all trial and appellate levels. He has often been called upon to act as senior counsel in several important cases in his field of expertise and built a solid reputation, whether acting for plaintiff ...

Marc-Olivier Plante is a member of our tax team. His practice encompasses all tax aspects of mergers and acquisitions, corporate financing, business reorganizations and international transactions. He also handles matters relating to estate planning and transfers of family businesses. Mr. Plante also assists a wide array of taxpayers in disputes with the tax authorities, particularly in income tax and consumer tax matters. He also advises taxpayers in connection with voluntary disclosures and ...

Paule Hamelin is a partner in the firm's Montréal office, practising primarily in civil and commercial litigation, including product liability, contractual commercial disputes (contract of services, franchises or leases) and bank litigation. Paule is also involved in the areas of regulatory and compliance law, energy, consumer protection law, marketing and advertising law and privacy law. A portion of her practice is also devoted to extraordinary recourses and class actions. She has ap...

François Renaud is a partner and coordinator of the firm’s Private financing group. He practices mainly in the area of financing and regularly represents and advises lenders and borrowers in the structuring and arranging of credit facilities (syndicated or not) and the negotiation and drafting of the necessary legal documents (including credit agreements, security documents, agreements between lenders, and legal opinions). Mr. Renaud has acted in several major cross-border financ...

Jacques S. Darche is a lawyer recognized by Best Lawyers in the practice areas of Franchise Law and International Arbitration. Jacques S. practices law in Montréal, Quebec Best Lawyers has recognized Jacques S. Darche since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Jacques S. Darche is held by other lawyers.

Nicolas Mancini is a partner in the firm’s Commercial Litigation and Insolvency and Restructuring groups, and has been a lawyer at the firm since 2015. His practice focuses on commercial litigation, litigation involving the enforcement of security interests and asset recovery, as well as litigation in the context of bankruptcy and insolvency and the associated restructuring and reorganization proceedings. Nicolas represents clients in a wide range of insolvency-related proceedings, incl...

Janie Chaloux has developed a practice focused on real estate law, advising landowners, real estate developers, financial institutions and private lenders. She is mainly involved in transactions involving real estate development, the acquisition and sale of real estate, real estate investments and real estate financing. She also advises real estate developers on contractor licensing issues. She is also involved in corporate reorganization, including for purposes of real estate aspect of the t...

Charles Gaulin is a lawyer recognized by Best Lawyers in the practice area of Labour and Employment Law. Charles practices law in Sherbrooke, Quebec Best Lawyers has recognized Charles Gaulin since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Charles Gaulin is held by other lawyers.

Alain M. Leclerc is a patent and trademark agent and intellectual property lawyer. He advises, guides and represents clients in connection with intellectual property asset protection, with particular emphasis on drafting and obtaining patents. Alain develops winning strategies for protecting and enhancing the value of intellectual property. He is able to propose proactive and practical solutions based on thirty years of experience. He has written numerous authoritative works on intellectual p...