Best Lawyers in Quebec, Canada for Tax Law

Taxation no longer holds any secrets for Martin Delisle. As a member of the Board of Directors and head of the Business Law group, Martin's expertise extends to all matters relating to civil and criminal tax litigation. This expertise includes tax audits of businesses, trusts or individuals relating to income tax, consumption taxes (GST, HST and QST), corporate reorganizations, estates, tax avoidance (GAAR, anti-avoidance rules), tax investigations (fraud or tax evasion) as well as scientific...

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 ...

Daniel Lacelle is partner in the firm's Montréal office and is the office leader of the Tax Law Group. He practises in taxation law with particular emphasis on corporate and transactional taxation, including in relation to mergers and acquisitions, corporate reorganization, infrastructure, debt and equity financing, foreign entities and aboriginal tax. He has acted for financial institutions, equity investors and other corporate entities with respect to public and private corporate fin...

Olivier leads the Tax Controversy and Litigation practice of Deloitte Legal Canada LLP. Olivier practices tax law with a focus on tax litigation and tax controversy, from the audit and objection stages to tax appeals before the courts. He regularly assists clients in resolving tax disputes, both in and out of Court, and engages in managing complex tax audits, ensuring that the tax authorities operate within the lawful parameters regarding demands for information and documents and correcting n...

Jonathan Lafrance is a tax litigator. Based in Montreal, Mr. Lafrance has developed a national practice helping clients resolved their tax disputes. Over the years, Mr. Lafrance has argued cases before the Court of Quebec, the Superior Court of Quebec, the Quebec Court of Appeal, the Supreme Court of British Columbia, the Alberta Court of Queen’s Bench, the Ontario Superior Court of Justice, the Tax Court of Canada, the Federal Court and the Federal Court of Appeal in the context of tax...

David H. Sohmer is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law and Trusts and Estates. David H., who practices law in Montréal, Quebec, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David H. is held by other top lawyers in the same geographic and legal practice area.

Marie-Claude Marcil is a partner in the Tax group of the Montréal office. With over 15 years of experience in tax litigation and dispute resolution, clients turn to her extensive experience in cases involving specific and general anti-avoidance rules, transfer pricing, acquisitions of control, deductibility of business expenses, employer payroll taxes, taxation of financial institutions, imposition of penalties, and scientific research and experimental development (SR&ED). She also...

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.

Quentin Lageix is a partner in the Tax group. His practice encompasses all aspects of tax law. More specifically, Quentin advises clients on transactional taxation, international taxation and tax planning matters. Quentin participates in developing and implementing complex tax strategies. His practice focuses on domestic and cross-border corporate restructurings, reorganizations, mergers and acquisitions.

Sébastien Gingras has extensive experience as a legal and tax advisor. Throughout his career, his tax practice has led him to be involved in various transactions and operations where his involvement has extended well beyond the field of taxation. He advises investment funds, corporations, partnerships, public bodies, pension plans, commercial trusts, mutual funds and other businesses in their transactions and dealings, including investments, mergers and acquisitions, reorganizations an...

Paul Ryan Ad. E. is a top attorney recognized by Best Lawyers in the practice area(s) of Alternative Dispute Resolution and Tax Law. Paul, 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 Paul is held by other top lawyers in the same geographic and legal practice area.

Me Alain Ménard, a lawyer and partner of Cain Lamarre, has been a member of the Quebec Bar since 1979. Me Ménard holds a Master’s degree in Business Administration and is a managing partner in charge of the Taxation Group. He began his career at the federal Department of Justice where he represented the Canada Revenue Agency for several years. Me Ménard has served as vice-chair of the Commission de la santé et de la sécurité du travail and as pr...

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...

Pierre-Paul Persico is a partner in the tax group at our Montreal office. With extensive experience in tax law, he provides advice and representation in several key areas, including corporate reorganizations and estates, trust creation and estate planning, including post-mortem strategies. Pierre-Paul's prominent ability to give strategic tax advice has attracted his diverse client base, which includes businesses, professionals and high-net-worth individuals. With his in-depth understanding o...

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...

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