Sean Gallagher


[email protected]

Sean is building a diversified litigation and dispute resolution practice with a focus on commercial litigation, administrative law and appellate advocacy. He has experience advising clients in shareholder disputes, transactional litigation, fraud recovery, and contractual and tort disputes.

Sean represents domestic and international clients, both public and private, across a broad range of industries including mining, natural resources, and banking and financial services.

Sean has appeared as counsel before all levels of court in British Columbia and in the Federal Court of Appeal. Prior to joining BLG, Sean practiced litigation at another national firm.

Outside of his practice, Sean sits as a director of the Vancouver Bar Association and volunteers as a mentor with the British Columbia branch of the Canadian Bar Association.


Recent representative cases on which Sean has appeared include the following:

  • Canada (Environment and Climate Change) v. Ermineskin Cree Nation, 2022 FCA 123 - counsel to the respondent on an appeal from a judicial review of a decision of the Minister of Environment and Climate Change to issue a designation order under subsection 9(1) of the Impact Assessment Act.
  • Trainor-Degirolamo v. British Columbia (Ministry of Forests, Lands, Natural Resource Operations and Rural Development), 2022 BCCA 306 - counsel to the appellant on cross-appeal from a judicial review of a decision of the Minister of Forests, Lands, Natural Resource Operations and Rural Development to grant a license of occupation.
  • Nguyen v. Ly, 2022 BCSC 2347 - counsel for the petitioner tenant on an application for judicial review of a Residential Tenancy Branch decision.
  • Deep Water Recovery Ltd. v. Reynolds, 2023 BCCA 204 - counsel to the appellant on an application for a stay of proceedings.

Beyond Our Walls

Professional Involvement

  • Duty Counsel, Access Pro Bono
  • Director, Vancouver Bar Association

Bar Admission & Education

  • British Columbia, 2020
  • BA, University of British Columbia, 2015
  • JD, Western University, 2019