LAWYER PROFILE
Justine Johnston

Justine Johnston

Canada 2026

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Ranked in 1 practice area

About

Provided by Baker McKenzie

Canada

Practice Areas

Justine advises clients on all aspects of Canadian competition law, with a particular focus on obtaining competition clearance in domestic, cross-border and multi-jurisdictional transactions. She also provides strategic advice to clients regarding criminal and civil investigations, including for allegations of conspiracy and abuse of dominance, and other compliance matters.

Justine regularly advises clients on the application of the Investment Canada Act, and has recent experience guiding clients through industrial, cultural and national security processes and reviews. In addition, she has significant experience working with government and public relations advisors in connection with securing regulatory approvals for high-profile transactions.

Justine also has extensive experience with e-discovery processes related to merger review, criminal and civil investigations, and internal compliance. Justine draws on her experience to facilitate client’s compliance in a timely and efficient manner.

Professional Memberships

Law Society of Ontario

Canadian Bar Association (Competition Law and Foreign Investment Review, Vice Chair of the Reviewable Matters and Unilateral Conduct Committee)

Ontario Bar Association

American Bar Association (Section of Antitrust Law)

Publications

Author, Competition in Digital Markets, Canada chapter, Lexology Panoramic 2025

Author, Dominance and Monopolies, Canada chapter, Lexology In-Depth, 12th Ed

Author, "Canada: Abuse of dominance takes center stage in the latest round of amendments to the Competition Act," InsightPlus, February 2024

Author, "Canada: Proposed Competition Act amendments will create new but uncertain form of class proceeding," InsightPlus, February 2024

Author, "Canada: Merger review developments for 2024," InsightPlus, January 2024

Chambers Review

Provided by Chambers

Chambers Canada Guide

Competition/Antitrust - Nationwide - Canada

Associate to watch
Associates to watch

Individual Editorial

Justine Johnston is a senior associate in Baker McKenzie's Toronto office. She has notable experience assisting international clients with merger clearance and foreign investment reviews.

Strengths

Provided by Chambers

  • Justine is knowledgeable and responsive.

    Competition/AntitrustChambers Canada Guide
  • Justine is a very bright leader.

    Competition/AntitrustChambers Canada Guide
  • Her clear and accessible communication style makes complex legal issues easier to navigate and she always takes the time to understand the specific context of our business needs.

    Competition/AntitrustChambers Canada Guide

Ranked Individuals at Baker McKenzie (19)

Nationwide - Canada

Ontario

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