Gillian has a broad corporate and securities law practice, focusing on mergers and acquisitions and corporate finance. Gillian advises clients on a variety of domestic and international transactions, including public and private acquisitions and divestitures, debt and equity financings and corporate reorganizations. In addition to transactional work, Gillian regularly advises clients on complex commercial agreements and securities regulatory matters, including continuous disclosure obligations.

Prior to joining Lawson Lundell, Gillian practiced at a leading Canadian law firm in Toronto. 

Professional Activities

  • Canadian Bar Association, Member
  • Guest Lecturer on Mergers and Acquisitions, Peter A. Allard School of Law, UBC (2018 – Present)

Community Activities

  • Highlands Early Learning Centre, Board Member

Recognitions & Rankings

Recognitions & Rankings

  • Best Lawyers in Canada: Ones to Watch 2023-2024: recognised for Corporate Law
  • Thomson Reuters "Stand-out Lawyer" 2022
  • Acritas Stars 2019-2021



  • Counsel to BDC Capital Inc., the investment arm of the Business Development Bank of Canada, in connection with its equity investment in a number of cleantech companies.
  • Counsel to Hub International Limited on multiple acquisitions of Canadian insurance brokerages, including TRG Group Benefits & Pensions Inc.
  • Counsel to SSR Mining Inc. on its C$337 million acquisition of Claude Resources Inc. by way of a plan of arrangement.
  • Counsel to Vancity Community Investment Bank on its acquisition of CoPower Inc., an issuer of green bonds.
  • Counsel to SSR Mining Inc. on its US$230 million convertible note offering.
  • Counsel to B2Gold Corp. on its US$100 million at-the-market offering in Canada and the United States.
  • Counsel to SSR Mining Inc. on the formation of a joint venture with Golden Arrow Resources Corp. for the development of the Chinchillas project in Argentina.
  • Advising British Columbia’s largest bulk terminal on a range of activities, including drafting commercial contracts.
  • Counsel to an intermediate mining company on its sale of certain exploration properties in Peru and Argentina.
  • Counsel to a syndicate of underwriters led by BMO Nesbitt Burns Inc. and CIBC World Markets Inc. on the C$228 million initial public offering of Milestone Apartment Real Estate Investment Trust, the first initial public offering in the world of a qualifying U.S. real estate investment trust by a non-U.S. entity.
  • Counsel to a syndicate of agents led by Scotia Capital Inc., BMO Nesbitt Burns Inc., CIBC World Markets Inc., National Bank Financial Inc. and TD Securities Inc. on TMX Group Limited’s private placement of C$1 billion principal amount of debentures.
  • Counsel to a syndicate of underwriters led by Canaccord Genuity Corp. and National Bank Financial Inc. in connection with the C$121 million initial public offering of HealthLease Properties Real Estate Investment Trust.
  • Counsel to a syndicate of dealers led by BMO Nesbitt Burns Inc. on the renewal of the Greater Toronto Airport Authority’s C$1.5 billion medium-term note program and certain ongoing obligations under the dealer agreement.
  • Counsel to Xceed Mortgage Corporation on its C$53 million acquisition by MCAN Mortgage Corporation by way of a plan of arrangement.

News & Publications

Speaking Engagements

Speaking Engagements

  • 'A Changing Practice: Defining Your Own Path to Success in Law,' Canadian Bar Association and Vancouver Bar Association, Presenter, 2019
Gillian Muirhead, Lawson Lundell Photo
t 604.631.9133
f 604.669.1620

Assistant Contact

Bar Admissions

  • British Columbia (2015)
  • Law Society of Upper Canada (2012)


University of Toronto, (J.D. Hons., 2011)

Queen’s University (B.A. Hons., with distinction, 2007)

Jump to Page