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Jackie van Leeuwen


Jackie van Leeuwen is a construction lawyer. She joined Glaholt Bowles LLP in 2019 as an articling student. She advocates for clients during litigation, arbitration and mediation. She also provides proactive advice to clients relating to construction, design, and other agreements. 

Jackie most frequently acts in disputes involving contracts, specifications, liens, bond claims, delay claims, deficiencies and professional negligence. She represents clients at all levels of the construction supply chain, including developers, owners, general contractors, subcontractors, sureties, and design professionals.

Jackie obtained her J.D. from Queen’s University Faculty of Law. Prior to her studies in law, she earned an Honours Bachelor of Arts Degree in English from Wilfrid Laurier University and worked in the service industry.

Jackie is currently serving as a Member at Large of the Ontario Bar Association's Construction and Infrastructure Section Executive and is a member of the Legislative Reform Subcommittee.


  • Canadian Bar Association, Construction and Infrastructure Section
  • Ontario Bar Association, Construction and Infrastructure Section
  • The Advocates' Society
  • Toronto Lawyers Association
  • Young ICCA (International Council for Commercial Arbitration)

Teaching Activities

  • George Brown College Angelo DelZotto School of Construction Management, Guest Instructor (Principles of Construction Law Course), April 16, 2021
  • Queen's University Faculty of Law, Guest Lecturer (Construction Law Course), February 4, 2021

Representative Work

  • Infrastructure (Manufacturing): Acted for the supplier in an arbitration related to the supply and manufacture of light rail vehicles to a public infrastructure project
  • Infrastructure (Energy): Acted for the contractor in an arbitration related to a public energy project
  • Acted for the moving party/defendant in a summary judgment motion which resulted in the complete dismissal of the plaintiff's action
  • Acted for the plaintiff in a dispute related to unpaid invoices which settled for the full amount of the plaintiff's claim
  • Counsel for other lawyers respecting alleged professional negligence in handling of construction law matters


Representative Publications

"Summary of ICC Commission Report: Leveraging Technology for Fair, Effective and Efficient International Arbitration Proceedings" Building Insight - Glaholt Bowles LLP Newsletter, Summer 2022 (Issue 19) (Co-author)

"Limitation Periods and Construction Invoices: 1838120 Ontario Inc. v. Township of East Zorra-Tavistock" Building Insight - Glaholt Bowles LLP Newsletter, Summer 2021 (Issue 16)

"Key Changes in the 2021 ICC Arbitration Rules" Building Insight - Glaholt Bowles LLP Newsletter, Spring 2021 (Issue 15)

"Pearls of Wisdom from the Bench" Building Insight - Glaholt Bowles LLP Newsletter, Spring 2021 (Issue 15) (Co-author)

"Adjudication in Ontario and Beyond: The Role of the Construction Adjudicator" Building Insight - Glaholt Bowles LLP Newsletter, November 2020 (Special Edition - Adjudication: One Year in Review)

Force Majeure Provisions in the Context of Outbreaks and Protests” Building Insight - Glaholt Bowles LLP Newsletter, Winter 2020 (Issue 10)

Case Comment – Walsh Construction Company Canada v. Toronto Transit Commission” (2019) - Canadian College of Construction Lawyers - Legal Update (Issue 155) (Co-author)

How Do Suppliers Fit Within the New Prompt Payment Regime?” Building Insight - Glaholt Bowles LLP Newsletter, Fall 2019 (Issue 9) (Co-author)


Education & Admissions