Patrick Essiminy

Julie Desrosiers practices intellectual property litigation. Julie regularly acts on behalf of high-tech corporations and advises clients on injunctions, seizures and proceedings to protect their intellectual property, trade secrets and strategic information. Julie’s practice is currently focused almost exclusively on patent litigation. A seasoned litigator, she has been involved in several important patent infringement cases in the pharmaceutical sector. She appeared before the Supreme...

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 ...

Robert is a partner of the firm and heads its Tax department and Wills, Trusts and Estates department. He received both his Bachelor of Civil Law and Common Law from McGill University in 1989 and later completed a Graduate Diploma in Taxation at McGill University. Robert practices in the area of tax with a focus on income tax planning for Canadian private corporations and their owners, corporate reorganizations and tax dispute resolution. Robert is regularly involved in estate and succession ...

Stephen Kelly is the Canadian national chair of our business law group. He practises corporate and securities law, with particular emphasis on corporate finance and mergers and acquisitions. He regularly acts for large public companies, underwriters and investors in public offerings, including initial public offerings, bought-deal transactions and cross-border offerings as well as private placement transactions.Mr. Kelly frequently advises on public and private mergers and acquisitions both n...

Amélie Béliveau practises intellectual property law and commercial litigation. She is involved in all aspects of litigation, including drafting legal opinions and proceedings, and pleading before various courts. Amélie’s work in intellectual property focuses on matters relating to trademarks, copyrights, defamation and the right to control one’s own image. In her trademark practice, Amélie assists clients with all stages of securing Canadian protection....

Pascal de Guise is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law, Securities Law and Venture Capital Law. Pascal practices law in Montréal, Quebec Best Lawyers has recognized Pascal de Guise since 2018. 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 Pascal de Guise is held by other lawyers.

Vicky Berthiaume is a lawyer recognized by Best Lawyers in the practice area of Administrative and Public Law. Vicky practices law in Montréal, Quebec Best Lawyers has recognized Vicky Berthiaume 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 Vicky Berthiaume is held by other lawyers.

Jacques Provencher is a partner-owner in the firm who advises our clients on a variety of managerial issues, and represents companies of all sizes in different economic sectors before administrative tribunals and civil courts, in both federal and provincial jurisdictions. The negotiation of collective agreements, grievance arbitrations, complaints before the Tribunal administratif du travail (TAT), occupational health and safety matters, and Human Rights Charters ' issues are part of his dail...

Marc Leiter’s experience, expertise and solution-solving acumen are the keys to a successful commercial transaction. With over three decades of business law experience, Marc Leiter steers businesses through all stages of a commercial transaction. Well-versed in the challenges faced by businesspeople, he dispenses sound advice on mergers and acquisitions (both domestic and cross-border), contracts and licenses, and other transactions. A prominent figure in the world of business law, Marc...

With more than 35 years of experience, Sylvain Rigaud is a leading lawyer in bankruptcy, insolvency, financial restructuring, and related litigation. Sylvain has represented clients across a broad range of industries, including financial services, real estate, natural resources, pulp and paper, mining, energy, manufacturing, pharmaceuticals, life sciences, technology, retail, aeronautics, construction, aircraft financing, shipping, and admiralty. Sylvain has acted for all types of parties inv...