Associate
"My approach is grounded in delivering practical, effective solutions that get results."
An insurance defence and coverage litigator, appearing regularly before the Superior Court of Justice and the Court of Appeal for Ontario.
Kathleen Lefebvre is a strategic advocate whose practice focuses on insurance litigation and coverage. She has experience across a broad range of claims, including property and casualty, occupiers' liability, motor vehicle accidents, product liability and construction disputes.
As defence counsel, Kathleen represents insured individuals in personal injury and property damage matters. In her coverage practice, she advises and litigates on all types of liability policies, including commercial general liability, travel, automobile and homeowner policies. She appears regularly before the Superior Court of Justice and the Court of Appeal for Ontario.
She is known for her responsiveness, precision and ability to deliver effective solutions under pressure, and she approaches each file with diligence and tenacity. Away from her practice, Kathleen enjoys time with family and friends, biking, golfing, snowboarding and a good book.
Kathleen's work centres on two areas:
Reported decisions Kathleen has worked on. Each links to the full decision on CanLII.
From the blog
Notes and commentary on recent decisions and developments.
The historic Canada Day 2026 storm left thousands of Ottawa homeowners tearing out drywall and replacing ruined furnaces. But an extraordinary weather event does not absolve builders and engineers of liability: where one home floods while its neighbours stay dry, the real cause may be a hidden construction defect, and that opens a very different path to recovery, if you act before the limitation clock runs out.
On July 11, 2026, our team traded the office for the sand at Woodbine Beach to play in the 32nd annual Heatwave for SickKids beach volleyball tournament. The event, which holds a Guinness World Record as the largest of its kind, has raised roughly $5 million for SickKids Foundation, and we were glad to lend a hand.
As of July 1, 2026, most of Ontario’s auto accident benefits are no longer automatic. Only medical, rehabilitation, and attendant care remain mandatory, while income replacement and most other benefits become optional coverage you have to buy. Here is what changed under Ontario Regulation 383/24, who may lose access, and what every driver should do at renewal.
Davidson Cahill Morrison LLP
For an insurance coverage dispute, a defended liability claim, or an appeal, Kathleen is ready to help. The first conversation is straightforward and without obligation.
Davidson Cahill Morrison LLP · 220 Bay Street, Suite 1400, Toronto · dcmlaw.ca