Sebastien is an associate in the Montreal office and a member of the national tax group. He advises clients on a wide range of corporate and personal tax issues.
Sebastien joined Osler as a summer student in 2022 and completed his articles with the firm in 2025. He obtained both civil law and common law degrees from McGill University. He also holds a bachelor’s degree in music.
Areas of Expertise
Media Mentions
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Media Mentions August 13, 2025
Methanex prevails in Privy Council dispute in Trinidad and Tobago – Bloomberg Tax
A U.K. decision demonstrates the importance of commercial practice and understood corporate law concepts when interpreting tax statutes and treaties.
Read more
Community Involvement
- Board of Directors – Choral Canada (2022 – Present)
- Board of Directors – Young Voices Toronto (2019 – 2023)
- Senator – McGill University (2019 – 2020)
- Caseworker – Legal Information Clinic at McGill (2021)
Credentials
Education
- McGill University, B.C.L/J.D.
- McGill University, Bachelor of Music (Major in Opera/Vocal Performance, Minor in Management)
Languages
- English
- French
Professional Affiliations
- Barreau du Québec
