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Katherine Delage

Telephone : (514) 393-7476

Fax : (514) 878-1865

Email : kdelage@rsslex.com


Katherine Delage is a Partner in our Insurance Law Practice Group. Her practice focuses on professional liability, insurance law, civil litigation, directors’ and officers’ liability, and product liability, as well as negligence and product liability issues.

Over the years, Katherine also developed special skills on coverage issues and various insurers regularly request her to issues opinion on this matter.

Representative Matters

Professional liability — Katherine led the team that appeared before the Supreme Court of Canada in a case arising from a major claim against a law firm, based on alleged negligence in corporate structure and tax planning transactions. In December 2018, the Court issued a decision endorsing our team’s arguments and dismissing the claim.

Fonds d’assurance responsabilité professionnelle du Barreau du Québec — Repeatedly retained by the Quebec Bar’s malpractice insurance fund to defend lawyers against professional liability claims

Opinion drafting — Analysing insurance policies and drafting opinions on the insurers’ duty to defend and indemnify in commercial, professional, D&O, crime, theft and embezzlement insurance matters as well as in property insurance

Montréal Olympic Stadium roof — Representing an insurer and its insured in a claim against engineering firms and the Régie des installations olympiques (Stadium’s operator) following the collapse of the Stadium’s roof

Investment losses — Representing an insurer and a bank in complex litigation launched by several investors after the collapse of their investments

Directors and officers — Defending against claims raising civil or statutory liability

Product liability — Defending insurers, manufacturers and retailers against claims involving allegedly faulty products

Hospital liability — Defending health and social services institutions against claims by patients

Health care practice — Representing health institutions and organizations in cases raising doctors’ and nurses’ practice rights and privileges

Claims for indemnity — Representing insurers sued for failure to pay indemnities


Best Lawyers Canada: Rated as an expert in Professional Malpractice Law (2021–) and Insurance Law (2022–)


Bar of Montréal: member of the Focus Group on the reform of the Insurance Act

Publications and Conferences

Katherine is coauthor of several conferences on insurance topics, such as:

  • “La responsabilité des administrateurs et des membres de la direction” (D&O Liability), Federated Press, October 2009
  • “Les réclamations contre les administrateurs et dirigeants : étendue de la couverture et dernières tendances” (Claims against D&Os: scope of coverage and recent issues), Canadian Institute, April 2004
  • “L’impact des fausses déclarations à l’assureur” (The impact of false statements to insurers), Canadian Institute, June 2003
  • “Les moisissures et l’exclusion pour pollution” (Mildew and the exclusion of pollution-related damage), Insight, April 2003
  • “Mise-à-jour sur les assurances en matière de construction” (Update on construction insurance), Insight, November 2001

Community Involvement

Sommets sur le fleuve co-owners’ syndicate: director (2014–)


English, French


Bachelor of civil law, Laval University, 1996

Call to Bar

Quebec, 1998