Sébastien Poirier
PartnerSébastien Poirier specializes in municipal law and environmental law.
Sébastien Poirier practices in the fields of municipal, environmental and administrative law. He provides legal and strategic services to businesses, real estate owners, developers and builders, and citizens who must interact with a public body, or who require advice or encounter certain problems with the regulations that apply to their activities.
His practice is wide-ranging, encompassing urban and regional planning, contaminated land management, issues related to uses in agricultural zones, quarry and sandpit operations, expropriation procedures, as well as wetlands and water regulations. He also has expertise in the constitutional issues raised by the application of local regulations to enterprises under federal jurisdiction.
Sébastien analyzes each case logically, rigorously and pragmatically, with the aim of offering his clients an honest and precise vision of the legal issues and solutions available to them.
Working to prevent and settle disputes wherever possible, he nevertheless has a keen interest in the art of advocacy, and regularly represents his clients before Quebec’s judicial and administrative tribunals.
Sébastien is the author of several publications and lectures in the fields of environmental law, constitutional law and expropriation law, having participated in an extensive study on the scope of Quebec’s and municipalities’ constitutional jurisdiction in environmental matters. He has been cited on several occasions by the courts in expropriation matters, including the Court of Appeal.
Sébastien Poirier specializes in municipal law and environmental law.
Sébastien Poirier practices in the fields of municipal, environmental and administrative law. He provides legal and strategic services to businesses, real estate owners, developers and builders, and citizens who must interact with a public body, or who require advice or encounter certain problems with the regulations that apply to their activities.
His practice is wide-ranging, encompassing urban and regional planning, contaminated land management, issues related to uses in agricultural zones, quarry and sandpit operations, expropriation procedures, as well as wetlands and water regulations. He also has expertise in the constitutional issues raised by the application of local regulations to enterprises under federal jurisdiction.
Sébastien analyzes each case logically, rigorously and pragmatically, with the aim of offering his clients an honest and precise vision of the legal issues and solutions available to them.
Working to prevent and settle disputes wherever possible, he nevertheless has a keen interest in the art of advocacy, and regularly represents his clients before Quebec’s judicial and administrative tribunals.
Sébastien is the author of several publications and lectures in the fields of environmental law, constitutional law and expropriation law, having participated in an extensive study on the scope of Quebec’s and municipalities’ constitutional jurisdiction in environmental matters. He has been cited on several occasions by the courts in expropriation matters, including the Court of Appeal.
Field of practice
Federalism and Environment in Quebec: Towards the Creation of Federal Enclaves? David Robitaille and Sébastien Poirier, Recent Developments in Environmental Law (2020), Volume 483, Quebec Bar’s Professional Quality Service.
The Impact of Urban Planning Regulations on the Main Compensation in Expropriation Matters, Sébastien Poirier, with the collaboration of Camille Ingarao, Recent Developments in Expropriation Law (2020), Volume 481, Quebec Bar’s Professional Quality Service.
Accessory Compensation in Expropriation Matters: Is Your Damage Direct or Indirect? Louis Beauregard and Sébastien Poirier, Recent Developments in Expropriation Law (2019), Volume 462, Quebec Bar’s Professional Quality Service.
Federal Competencies and the Application of Provincial Environmental Regulations and Laws: A Turbulent Relationship, Sébastien Poirier and Roger Paiement, Recent Developments in Environmental Law 2018, Volume 450, Quebec Bar’s Professional Quality Service.
The Scope of Quebec’s Constitutional Competence in Environment: A Look at the Issue of Interprovincial Transport of Hydrocarbons, Sébastien Poirier, David Robitaille, and Stéphanie Roy, IRAI, Study No. 2, 2018.
Transportation of Hydrocarbons: Legal and Political Issues, Training for the Montreal Regional Association of Quebec Solidaire, February 25, 2017.
The Application of the Precautionary Principle under Article 20 in fine of the Environment Quality Act: A Wide Open Door, Sébastien Poirier, RJEUM, Volume 2, Number 1, 2016.
LL.B.
Université de Montréal, 2015
Master of Arts in Philosophy University of Montreal, M.A., 2011
Bachelor of Science / Major in Psychology and Minor in Philosophy University of Montreal, B.Sc., 2009
Member, Barreau du Québec
Member, Canadian Bar Association – Québec
Member, Institut de développement urbain du Québec
Co-founder and Editor-in-chief, from 2013 to 2015
Student Legal Journal of the University of Montreal
University of Montreal, Faculty of Law
Pro Bono Intern, from 2013 to 2014
PBSC, University of Montreal section
Hochelaga-Maisonneuve Community Education Pavilion
Volunteer in the Psychiatry Department, from 2012 to 2015
Maisonneuve-Rosemont Hospital
