Jeff Langlois


  • P 604-687-0549 EXT 114
  • C 604-992-1680
  • 340 - 1122 Mainland Street Vancouver, BC V6B 5L1

Jeff Langlois provides strategic advice and representation to First Nations engaged in litigation, negotiations and consultations to protect and advance his clients’ aboriginal and treaty rights.

Jeff acts for First Nations in a broad range of matters, including constitutional litigation, environmental assessments and engagement with the Crown and businesses relating to diverse areas such as land use planning, oil and gas, mining, hydroelectric development and the implementation of land claims agreements.

Jeff has appeared before all levels of Court in British Columbia and Yukon, as well as the Alberta Court of Queen’s Bench, the Ontario Court of Appeal and the Federal Court. He has also assisted clients in the Supreme Court of Canada. His practice includes clients in British Columbia, Yukon, the Northwest Territories, Alberta, Saskatchewan and Ontario. Prior to joining JFK Law, Jeff practiced at a national law firm in Vancouver where he represented First Nations and businesses in a broad range of contexts, including aboriginal law, commercial litigation, insolvency and dispute resolution.

Practice Focus:

  • Consultation and accommodation
  • Aboriginal and Treaty Rights
  • Regulatory hearings regarding resource development
  • Modern treaty interpretation and implementation
  • Civil litigation
  • Environmental assessments


  • Called to the Alberta Bar 2016
  • Called to the British Columbia Bar 2009
  • University of British Columbia, LL.B., 2008
  • University of Calgary, B.A., 2004


  • Counsel for the Gwich’in Tribal Council, a northern land claims organization, who intervened in a court challenge to a land use plan adopted by Yukon for the Peel Watershed

  • Counsel for a coalition of Alberta First Nations participating in the environmental assessment of a proposed hydroelectric dam on the Peace River as well as associated judicial review proceedings.

  • Counsel for Alberta First Nation asserting an unjustified infringement of Treaty 6 rights resulting from the cumulative effects of resource development in its traditional territory.

  • Counsel to British Columbia First Nation and band owned development corporation regarding contractual dispute.