Dan Leduc


  • Commercial Litigation

  • Construction Law



About Dan

Dan Leduc practices almost exclusively in the field of construction law and dispute resolution. He is frequently called upon to advise and represent owners, subcontractors, suppliers, and builders in such front-end services as contract reviews, tender issues, and general construction matters, as well as in litigation and arbitration.

Mr. Leduc is experienced in negotiating, mediating, arbitrating, and litigating all manner of construction disputes including construction liens, trust claims, delay claims, construction insurance claims, and architect’s and engineer’s errors and omissions. He has experience in drafting and negotiating various forms of construction contracts on behalf of owners, developers, general contractors, subcontractors, and suppliers. Mr. Leduc also has experience in surety bond claims, including performance bond claims and labour and material payment bond claims, as well as managing cases involving large volumes of documents, at times, in excess of 2,000,000 documents.

Rankings and Recognitions

  • Best Lawyers in Canada: Construction law “Lawyer of the Year,” 2022
  • Best Lawyers in Canada: Construction law, 2018-2023
  • Canadian Legal Lexpert Directory, 2012-2022: recommended in Construction Law
  • Chambers Canada, Nationwide: Construction, Chambers and Partners, 2020
  • Chambers Global: The World’s Leading Lawyers for Business (2016): Construction
  • Chambers Global: Canada (2015): Construction

2023 Associate Membership Stamp

Call to Bar 1993 (ON)


LL.B., University of New Brunswick, 1991
B.A. Hons., Queen’s University, 1988


Ottawa Office


English, French

Professional Memberships and Affiliations

Ottawa Construction Association (Director)


  • “Clash Detection of the Titans,” seminar, Ottawa Construction Association Annual Symposium, October 5, 2022.
  • “Clash Detection of the Titans,” seminar, Mechanical Contractors Association of Canada Annual Conference, September 30, 2022.
  • “Contract Clauses,” seminar, The Canadian Steel Conference, Canadian Institute of Steel Construction, September 28, 2022.
  • “Prompt Payment,” seminar, The Canadian Steel Conference, Canadian Institute of Steel Construction, September 28, 2022.
  • “Prompt Payment,” webinar, EBC Inc., September 7 & 26, 2022.
  • “Escalation Clauses and Best Practices,” seminar, Canadian Automatic Sprinkler Association Conference, June 13, 2022.
  • “Prompt Payment and Bill 28,” information session, Mechanical Contractors Association of Manitoba, April 20, 2022.
  • “The New Construction Act,” seminar, Ottawa Construction Association, March 21, 2022.
  • “Best Business Practices,” webinar, Electrical Contractors Association of British Columbia, February 15, 2022.
  • “Project Delivery Systems,” webinar, Mechanical Contractors Association of Canada, February 10, 2022.