Filipe Costa

Thierry joined Martel Cantin's team in the summer of 2004 and began his articling at the Bar. He interrupted this internship to obtain a Master's degree in taxation from the University of Sherbrooke in 2006. He was sworn in in 2007 and has been working at Martel Cantin since then. Mr. Thierry is a recognized expert in Canadian taxation and corporate law. His expertise is focused on serving small and medium-sized businesses in Québec and their managers with the objective of optimizing t...

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.

Jean Teboul is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative and Public Law and Class Action Litigation. Jean, 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 Jean is held by other top lawyers in the same geographic and legal practice area.

Jean-François Vadeboncoeur is a top attorney recognized by Best Lawyers in the practice area(s) of Asset-Based Lending Practice and Banking and Finance Law. Jean-François, 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 Jean-François is held by other top lawyers in the same geographic and legal practice area.

Frédéric Barriault is a member of the Corporate/Commercial group at the Montréal office. His practice is centered on trust law, estate planning, assets protection strategies and corporate restructurings for private clients. He advises individuals, families and their enterprises from various backgrounds in order to provide them with tailor-made solutions in order to meet their personal goals, estate and business succession goals and philanthropic intentions. With his exper...

Julie Tremblay is passionate about defending taxpayers’ rights. Julie is the head of the Tax Litigation team. She assists individuals and companies in disputes with tax authorities, including income and commodity (GST/QST) tax disputes. Having previously worked at Revenu Québec, she has a unique understanding of the organization and uses this advantage to help clients navigate administrative tax procedures, including voluntary disclosure, tax audits and objections. She also has e...

Hugh Mansfield is a partner, lawyer, patent agent and trade-mark agent in Lavery’s intellectual property group. He practices in the intellectual property field since 2000. He is a lawyer and a registered patent agent in both Canada and the United States. Before practicing in intellectual property, he worked for over six years in Germany within a major consulting engineering firm, developing both air-ground data links and software simulating data communications in the aviation field. Hug...

Luc-Antoine Manneh is a partner in the Montreal office’s Banking & Financial Services team. He is involved in closing domestic and cross-border financing transactions on behalf of both lenders and borrowers. In this capacity, Luc-Antoine is particularly involved in drafting and negotiating credit agreements, intercreditor agreements and subordination agreements in the context of syndicated or bilateral financing transactions such as asset-based lending financing, acquisition financi...

Pascal Lauzon is one of Quebec’s leading specialists in intellectual property litigation. He acts quickly and efficiently to either prevent infringement of intellectual property rights or defend a business accused, wrongly or not, of violating the intellectual property rights of a third party. Pascal's practice focuses on trademarks and patents as well as on copyright, industrial design and trade secret issues. A mediator certified by the Barreau du Québec, he helps businesses fi...

Jean-François focuses his practice on defending professionals of all professions in all aspects covered by professional, disciplinary and deontological law. He also advises professionals in all aspects of their practice. Jean-François has extensive experience in class actions, defending various commercial businesses and a variety of professionals. With over 40 years of litigation experience, he has represented numerous clients before all civil courts in Quebec, as well as before...