Arnaud Sauve-Dagenais

Cassandre Louis is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative and Public Law and Municipal Law. Cassandre, who practices law in Montréal, Quebec, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Cassandre is held by other top lawyers in the same geographic and legal practice area.

Sharon G. Druker is a Partner and Head of the Corporate Services Department in our Business Law Practice Group. Her practice focuses on commercial and corporate law, including mergers and acquisitions, the purchase/sale and debt/equity-based financing of businesses, as well as other commercial transactions. She has over 35 years of experience in providing tailored legal solutions to support individuals, partnerships and corporations of all sizes doing business in Quebec, Canada, the United St...

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...

With over 30 years of experience, Francis is a seasoned commercial litigation lawyer, practicing in a wide range of areas: corporate litigation, particularly shareholder disputes, product liability, contract law, and disputes related to insurance, construction, and securities. He also has extensive knowledge in class actions concerning competition law, consumer contracts, and product liability. Francis has represented clients before all judicial levels, including the Federal Court and the Sup...

Jean-Sébastien Desroches practices business law and focuses primarily on mergers and acquisitions, infrastructure and project development as well as strategic partnerships. He was the firm’s practice leader for the Business Law Group up to 2018. Jean-Sébastien is particularly interested in artificial intelligence (AI) projects and their legal ramifications, especially regarding the various branches and applications of artificial intelligence in businesses and industries. H...

Patricia Seguin has been managing large national and international trademark portfolios for more than 35 years. She provides opinions and creative advice on trademark selection, availability and infringement. Patricia actively prosecutes and defends trademark registered or not. Patricia uses her personalized approach and comprehensive view of the client’s needs to offer creative, effective and customized solutions that enhance the value of intellectual property assets. Clients can then ...

Martin Legault is a partner in the Tax Group. He has a diversified practice. It is particularly focused on commercial transactions and encompasses all aspects of Canadian tax law. He advises clients on complex tax aspects related to mergers and acquisitions, reorganizations, restructurings, financings, spin-offs and divestitures. He has in-depth know-how relating to the tax aspects related to restructuring of entities experiencing financial difficulties. Before joining Fasken, he was a partne...

Ms Sauvé practises in civil litigation, primarily in the areas of class actions and cooperative law. She has participated in many complex class actions raising important legal issues. Her work has led to thousands of members obtaining justice through both settlements and judgments. Ms Sauvé is part of the Steering Committee of the Cambridge Forum on Canadian class actions since 2022 and was a speaker on many occasions in national conferences including at the National Class Actio...

Justine Benoit is a partner in the Tax Group of our Montréal office. She has extensive experience in corporate taxation, and her practice focuses primarily on transactions, mergers and acquisitions, and corporate reorganization. Justine takes a modern and proactive approach on taxation, closely monitoring the most recent changes and emerging practices in tax law. She keeps close tabs on areas of concern in the business community and adjusts her practice in order to keep up with the eve...

Mariella De Stefano is a Lawyer, Partner and Co-chair of our Insurance Law Group. Her practice focuses on insurance litigation, civil and professional liability, particularly in subrogation claims and complex subrogation matters. She regularly leads the Group in working with insurers, reinsurers, and insurance syndicates to pursue recovery claims in a timely and efficient manner including by way of alternative dispute resolution mechanisms. Mariella De Stefano has been practicing in the field...