Lawyer Profile
Christian Dumoulin
Sherbrooke, Québec

Overview
On May 6, 2026, Lexpert recognized the expertise of five of our partners in its 2026 Lexpert Special Edition:Infrastructure. Laurence Bich-Carrière, Jean-Sébastien Desroches, Christian Dumoulin, Nicolas Gagnon, Édith Jacques, Marc-André Landry, Ouassim Tadlaoui and André Vautour now rank among Canada’s leaders in supporting economic players in the infrastructure industry. Laurence Bich-Carrière, is a member of the Quebec and Ontario Bar Associations, Laurence Bich-Carrière practices within the Litigation and Dispute Resolution group, in a versatile civil and commercial litigation practice specializing in complex litigation (class actions, appeals, extraordinary remedies, private international law). Jean-Sébastien Desroches practises business law and focuses primarily on mergers and acquisitions, infrastructure, renewable energy and project development as well as strategic partnerships. He has had the opportunity to steer several major transactions—complex legal operations, cross-border transactions, reorganizations, and investments—in Canada and at an international level on behalf of Canadian, American, and European clients and international corporations and institutional clients in the manufacturing, transportation, pharmaceutical, financial, and renewable energy sectors. Christian Dumoulin is a partner in the firm’s Business Law Group. He served as Managing Partner of the Sherbrooke office from 2015 to 2023 and sat on the firm’s Board of Directors from 2015 to 2017, and again in 2024. He specializes in mergers and acquisitions, commercial law and real estate law, and acts as a business and strategic advisor to clients of all sizes. Recognized for his rigour and practical approach, he supports clients in complex transactions (reorganizations, financings, sales and acquisitions, shareholder disputes). He has also been advising on infrastructure projects for more than fifteen years, including public-private partnerships, as well as on all aspects of commercial real estate law. Nicolas Gagnon focuses his practice on construction law and suretyship. He counsels contractors, public and private sector clients, professional services firms as well as surety companies at every stage of construction projects. He advises clients on the public bidding and procurement processes and participates in the negotiation and drafting of contractual documents involving various project delivery methods, such as public-private partnership projects and design, construction, financing and maintenance contracts. In addition to advising various construction industry stakeholders on construction management and any claims that may arise, he also assists them with dispute resolution processes. Édith Jacques is a partner in the Business Law Group in Montréal. She specializes in mergers and acquisitions and commercial and international law. Édith acts as strategic business advisor for medium to large private companies. Marc-André Landry is a member of the Litigation and Conflict Resolution group and focuses his practice on commercial litigation. He frequently assists his clients in resolving their disputes through negotiation, mediation or arbitration, or before the various courts of law. Over the years, he has represented businesses in many sectors, including construction, real estate, renewable energy, conventional energy, new technologies, financial services and pharmaceuticals. Ouassim Tadlaoui is a partner in the firm’s Litigation and Dispute Resolution Group and focuses his practice on banking litigation, restructuring, bankruptcy and insolvency, as well as construction surety. He represents chartered banks and other financial institutions and alternative lenders as creditors, as well as certain debtors, in bankruptcy and restructuring proceedings. He also represents and advises surety companies, as well as national and international businesses, in insolvency, bankruptcy and restructuring matters in the construction industry. André Vautour practises corporate law and commercial law, and is specifically interested in corporate governance, strategic alliances, joint ventures, investment funds, and mergers and acquisitions of private companies. He also practises technology law (drafting technology development and transfer agreements, licensing agreements, distribution agreements, outsourcing agreements, and e-commerce agreements). About Lavery Lavery is the leading independent law firm in Quebec. Its more than 200 professionals, based in Montréal, Québec City, Sherbrooke and Trois-Rivières, work every day to offer a full range of legal services to organizations doing business in Quebec. Recognized by the most prestigious legal directories, Lavery professionals are at the heart of what is happening in the business world and are actively involved in their communities. The firm’s expertise is frequently sought after by numerous national and international partners to provide support in cases under Quebec jurisdiction.
Lavery is proud to announce that 42 partners are ranked among the leading practitioners in Canada in their respective practice areas in the 2026 edition of The Canadian Legal Lexpert Directory. The following Lavery partners are listed in the 2026 edition of The Canadian Legal Lexpert Directory: Asset Securitization Brigitte M. Gauthier Banking Étienne Brassard Class Actions Laurence Bich-Carrière Myriam Brixi Marie-Nancy Paquet Construction Law Laurence Bich-Carrière Nicolas Gagnon Marc-André Landry Ouassim Tadlaoui Corporate Commercial Law Étienne Brassard Jean-Sébastien Desroches Christian Dumoulin Alexandre Hébert Édith Jacques Paul Martel André Vautour Corporate Finance & Securities Josianne Beaudry René Branchaud Corporate Mid-Market Étienne Brassard Jean-Sébastien Desroches Alexandre Hébert Édith Jacques André Vautour Employment Law Benoit Brouillette Frédéric Desmarais Simon Gagné Richard Gaudreault Marie-Josée Hétu Guy Lavoie Josiane L’Heureux Zeïneb Mellouli Environment Valérie Belle-Isle Family Law Caroline Harnois Awatif Lakhdar Elisabeth Pinard Infrastructure Law Nicolas Gagnon Insolvency & Financial Restructuring Yanick Vlasak Insolvency Litigation Jean Legault Ouassim Tadlaoui Yanick Vlasak Jonathan Warin Intellectual Property Chantal Desjardins Alain Y. Dussault Isabelle Jomphe Eric Lavallée Labour (Management) Benoit Brouillette Brittany Carson Simon Gagné Richard Gaudreault Marie-Josée Hétu Marie-Hélène Jolicoeur Guy Lavoie Carl Lessard Zeïneb Mellouli Litigation - Commercial Insurance Dominic Boisvert Martin Pichette Litigation - Corporate Commercial Laurence Bich-Carrière Marc-André Landry Litigation - Product Liability Laurence Bich-Carrière Myriam Brixi Medical Negligence Anne Bélanger Mergers & Acquisitions Josianne Beaudry Étienne Brassard Jean-Sébastien Desroches Christian Dumoulin Alexandre Hébert Édith Jacques Mining Josianne Beaudry René Branchaud Occupational Health & Safety Josiane L'Heureux Professional Liability Marie-Nancy Paquet Judith Rochette Technology André Vautour Workers' Compensation Marie-Josée Hétu Josiane L'Heureux Guy Lavoie Carl Lessard
Practice Areas
Bar Information
Called to the bar: 1993 (QC)