Paul Ivanoff

Paul Ivanoff

Partner, Litigation

Key Contact: Construction

Key Contact: Construction Litigation

Contact Information

tel: 416.862.4223



Bar Admission

Ontario, 1993


  • University of New Brunswick, LL.B.
  • York University, B.A.



Paul is a Partner in Osler’s Litigation Department and is a key contact for the firm’s Construction and Infrastructure practice group. Paul’s practice involves the litigation, arbitration and mediation of disputes arising out of construction and infrastructure projects. He also provides contract administration advice during the course of completion of projects. Paul’s practice covers all aspects of construction law including disputes involving contracts and specifications, power purchase agreements, construction liens, mortgage priorities, delay claims, bidding and tendering matters, negligence claims, bond and insurance claims, and construction trusts. He advises all project participants on disputes related to a broad range of construction and infrastructure projects including airport facilities, power plants (nuclear, gas, solar, wind and coal), highways, industrial facilities, commercial buildings, civil works facilities and subways. Paul is certified as a Specialist in Construction Law by the Law Society of Ontario and is listed in The Lexpert/American Lawyer Guide to the Leading 500 Lawyers in Canada, 2018, Chambers Canada, The Best Lawyers in Canada, The Canadian Legal Lexpert Directory, Expert Guides: The Legal Media Group Guides to the World’s Leading Lawyers, and Canadian Who’s Who.

    • Toronto Transit Commission in various court proceedings related to the design and construction of the Toronto York Spadina Subway extension
    • Atomic Energy of Canada Limited in an action under a construction all risks insurance policy in connection with the retubing of the Point Lepreau Nuclear Generating Station
    • Ontario Power Authority in proceedings including a court application commenced by Greenfield Energy Centre relating to the amendment of IESO Market Rule 356
    • Northland Power in actions respecting wind and solar power projects
    • An Airport Authority in numerous claims relating to the design, construction and maintenance of air terminal facilities
    • An American based engineering and construction company in an Ontario action involving allegations of conspiracy, fraud and oppression, which focused on the propriety of the Ontario courts assuming jurisdiction over the dispute
    • A leading engineering firm in disputes relating to the installation of Selective Catalytic Reduction (SCR) equipment at Ontario Power Generating Stations
    • A project owner in an action involving the construction of a co-generation power plant
    • A leading engineering firm in a multi-party Ontario action involving allegations of negligence and breach of contract relating to the design and construction of an industrial processing system
    • An Ontario municipality in connection with procurement advice relating to bidding and tendering issues
    • A nuclear technology and engineering company in a dispute relating to the supply and installation of equipment
    • A leading Canadian contractor in various claims and disputes relating to roadway construction
    • Automobile manufacturers in various disputes relating to projects undertaken at automobile assembly facilities
    • A toll highway development company and a technology and services company in insurance actions

  • Chambers Canada: Canada’s Leading Lawyers for Business: Recognized in Construction
  • The Canadian Legal Lexpert Directory: Recognized in Construction Law
  • Benchmark Litigation Canada: Recognized in Construction; Dispute Resolution (Litigation Star)
  • Best Lawyers in Canada: Recognized in Construction Law
  • Thomson Reuters: "Stand-out Lawyer"

  • Wind Energy Institute of Canada, Director 

  • Ontario Bar Association, Construction Law Section, Past Chair
  • Law Society of Ontario
  • Canadian Bar Association
  • The Advocates' Society

  • Contract Termination: Considerations in Terminating for Default or for Convenience, Journal of the Canadian College of Construction Lawyers, 2021
  • Ryerson University – Engineering Law Course (Instructor), all Engineering Departments (2015-2021).
  • Advocates’ Society – Construction Law: Arbitration and Adjudication Advocacy, Speaker (April 2019).
  • Osgoode Hall Law School, Osgoode Certificate in Contract Management, Speaker (August 2017, May 2019 and March 2021).
  • The Canadian Institute, EPCM for Mining, Energy and Infrastructure Projects, Speaker (June 2013).
  • Law Society of Upper Canada, Professionalism and Practice Management in the Construction Lien Context, Speaker (January 2013).
  • Ontario Bar Association, Strategic Use of Summary Judgment in Construction Cases, Speaker (March 2012).
  • The Canadian Institute, 21st Annual Construction Superconference, Speaker, (December 2011).
  • Federated Press, 3rd Construction Claims Course, Course Leader and Lecturer (January 2011).
  • Law Society of Upper Canada, Construction Lien Essentials, Speaker (January and March 2011).
  • Osgoode Hall Law School Intensive Workshop, Negotiating Skills for Construction Professionals, Speaker (November 2009).
  • Pre-Trial Discovery Procedure in Canadian Litigation, Construction Checklists: A Guide to Frequently Encountered Construction Issues (edited by Fred D. Wilshusen, Eric A. Berg, et al. Chicago: ABA Publishing), American Bar Association, 2008.
  • Law Society of Upper Canada, Construction Lien Essentials, Speaker (January 2009).
  • Supreme Court of Canada Rules Owner in Tendering Process Owes No Duty of Care to Subcontractors, Osler Update, May 12, 2008.
  • The Canadian Construction Law Dictionary (Judicially Considered), Harvey J. Kirsh, Paul A. Ivanoff, Markham, Ontario:  LexisNexis Butterworths, 2006.