Sébastien Poirier

Environmental Law
Recognized Since Recognized in Ones to Watch since 2026

About Sébastien

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

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

Sébastien Poirier is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law.

Sébastien, 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 Sébastien is held by other top lawyers in the same geographic and legal practice area.

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Reviews

4.4 / 5

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Mei Lin Zhang

Jan 04, 2026

Turned a Regulatory Nightmare into a Smooth Resolution

Facing unexpected environmental fines for my manufacturing plant, I contacted Sébastien. He combined sharp analytical skills with practical solutions, identifying procedural errors in the enforcement...

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Lakshmi Patel

Jan 04, 2026

Strategic Guidance That Protected Our Non-Profit's Mission

Our environmental charity in Montréal faced a legal challenge over land use permissions. Sébastien provided strategic counsel that balanced legal rigor with our ethical goals. He anticipated oppositio...