About Jacqueline Armstrong Gates

Insurers and manufacturers facing product liability claims sit at the centre of Jacqueline (Jay) Armstrong Gates's practice. Jay is a partner and litigator at Gowling WLG in the Waterloo Region, heading the firm's national Product Liability Group in Canada as well as its Advocacy department, and advises clients on how to defend claims over the products they make or insure.

Beyond product cases, Jay runs a wide commercial litigation practice. Clients include retailers, self-insured entities, and public and private corporations and partnerships, some based in Canada and some in the United States. Their disputes range from fights between shareholders or partners to negligence actions, construction liens, commercial leases and title insurance.

Jay's legal career began with a call to the Ontario bar in 1996, two years after earning an LLB at Queen's University, a degree that included studies at Sydney University. A BA in political science from the University of Waterloo came first, in 1991. In court, Jay has argued before the Ontario Court of Appeal and the Divisional Court and has represented parties at trials in the Ontario Superior Court of Justice. Jay also writes and speaks on commercial and insurance disputes, with talks given in Ontario and across the United States.

Outside work, Jay enjoys travel and athletic adventures and keeps busy in the local community. That has meant time with Habitat for Humanity Build, the Food Bank and the Canadian Clay and Glass Gallery, and when the University of Waterloo honoured Jay in 2017, Jay was mentoring its students, attending career events and giving one-on-one advice.

Practice areas

Product liability defence

Jay leads Gowling WLG's product liability work across Canada and acts for insurers and manufacturers in defending product claims. Jay also co-wrote the 2019 Chambers Global Practice Guide chapter on product liability and safety.

Commercial, shareholder and leasing disputes

Jay takes on commercial disputes and the lawsuits that grow out of them, conflicts between shareholders or partners, negligence actions and disagreements over commercial leases.

Construction liens

Lien claims and the litigation tied to them are part of Jay's work. In 2019 Jay gave talks on Ontario's new Construction Act, covering prompt payment and adjudication and what the changes meant for lenders.

Title and general insurance disputes

Jay handles title insurance disputes and wider insurance matters, including claims involving personal injury, damage to a third party's property, wrap-up, and construction or transportation issues.

Education & credentials

  • LLB (with studies at Sydney University), Queen's University (1994)
  • BA, Political Science, University of Waterloo (1991)
  • Called to the Ontario bar (1996)

Awards & recognition

Publications & speaking

  • Product Liability & Safety 2019 (co-author), Chambers Global Practice Guide (2019)
  • Data Breach Crisis Management and the Role of In-House Counsel, 8th Annual ACC Minnesota In-House Counsel Conference (2019)
  • So Sue Me! Litigation in Canada, University of Waterloo, Institute of Quantum Computing (2019)
  • Leverage your Queen's Law JD: Career Advice from Law'94 Women (panelist), Queen's University (2019)
  • Changes to the Construction Act: A Lender's Update (2019)

Memberships & affiliations

  • Ontario Bar Association: Jay is a past executive member of the Ontario Bar Association and has chaired both its Awards Committee and its Law Day Mock Trial and Law Day Committee.
  • Waterloo County Law Association: Jay is a member of the Waterloo County Law Association.

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This listing was generated by AI from public sources in October 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on their firm’s website. Confirm Jacqueline Armstrong Gates’s licence and standing in the Law Society of Ontario directory ↗

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