Marie-Philippe Lavoie

Katia Sebastiani is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Katia, 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 Katia is held by other top lawyers in the same geographic and legal practice area.

Stéphanie Beaudoin is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. Stéphanie, 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 Stéphanie is held by other top lawyers in the same geographic and legal practice area.

François-Nicolas is a litigator, negotiator, author and renowned speaker. He is recognized for his people skills as well as his communication skills, notably when speaking on topics relating to labour relations. He is the firm’s resident artist and his marked interest in contemporary art has allowed the firm to considerably develop its art collection. He joined Monette Barakett as a student in 1998. He has been a partner since 2008 and oversees talent recruitment and leads the fi...

Morris Szwimer is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Morris, who practices law in Montréal, Quebec, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Morris is held by other top lawyers in the same geographic and legal practice area.

Catherine Dubé is a member of the Montreal tax team. As part of her tax litigation practice, she represents clients at all stages of the tax dispute process with Revenu Québec and the Canada Revenue Agency, including audits, objections and appeals. She also intervenes regularly before the Quebec and Canadian courts. Catherine uses her tax skills, both in the areas of income tax and consumption taxes, and advises clients on legal issues related to tax litigation and negotiations....

David Massé is a partner and Head of the Montréal office’s Securities and Public Mergers & Acquisitions Group. David has extensive experience focused primarily on corporate finance and securities, mergers and acquisitions, financial restructuring and corporate governance. He has been counsel to strategic purchasers, financial sponsors, private equity funds, pension funds and boards of directors in several complex domestic and cross-border transactions, including going ...

Mr. Patrick Henry is a litigator and a Partner in our Insurance Law Group. His practice focuses on insurance law, civil litigation, civil and professional liability and product liability law. Mr. Henry has pleaded before all judicial instances and appeal levels including on four occasions before the Supreme Court of Canada. His fields of practice include insurance law, civil litigation, civil and professional liability and product liability law.

Suzie Lanthier is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation. Suzie, 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 Suzie is held by other top lawyers in the same geographic and legal practice area.

Ms. Caroline Harnois is a member of the Family Law, Personal Law and Estate Law team. Her practice is focused on all aspects of family and estate law, which comprises private international family law, including international child abduction. Prior to joining the firm, Ms. Harnois worked as a lawyer with the Children, Person and Family Law team at The Hague Conference on Private International Law in the Netherlands, where she developed an expertise in extraterritorial conflicts and the applica...

Antoine Champagne is a partner in the Corporate Group. His practice focuses on public and private mergers & acquisitions, corporate finance, corporate governance, and securities law matters. Antoine regularly advises clients in connection with domestic and cross-border mergers and acquisitions, divestitures, and other strategic transactions across a broad range of industries, including technology, power and renewable energy, transportation, and retail. In addition, Antoine has experience ...