Partner
"Achieving successful outcomes in challenging medical malpractice lawsuits is what I do best."
A trial lawyer for patients and families in serious medical malpractice and personal injury claims, and trial counsel to other lawyers on select matters.
Paul Cahill's advocacy, in and out of the courtroom, has led the Law Society of Ontario to certify him as a Certified Specialist in Civil Litigation.
He has built a record of successful trial outcomes, including a $11.5 million judgment for medical malpractice that caused cerebral palsy, and a judgment against a negligent emergency room physician whose care led to the death of a 34-year-old mother of four. He has been recognized by Best Lawyers in Canada for medical negligence and personal injury litigation since 2021.
Paul is a past director of the Ontario Trial Lawyers Association (2020 to 2023) and past chair of its Medical Malpractice Section (2019 to 2020). On select matters, he acts as trial counsel to other lawyers in medical malpractice and serious personal injury claims. He was called to the Ontario bar in 2005.
Paul's practice is built around two areas:
A selection of Paul's reported decisions. Each links to the judgment on CanLII or the court's website.
Paul speaks regularly for the Ontario Trial Lawyers Association, the Law Society of Ontario and other professional bodies, and guest lectures at the University of Windsor Faculty of Law. Recent engagements include:
From the blog
Case comments and notes on medical malpractice and personal injury litigation.
Davidson Cahill Morrison LLP was proud to sponsor the 2026 OTLA Cup, held March 5 at the Hamilton Superior Court of Justice. Ontario law students argued a layered negligence trial arising from a residential gas explosion, before a three-judge panel. Congratulations to this year’s award winners.
Elisha Shaw was 34 and a mother of four when she died after being discharged from an emergency department with an undiagnosed internal hernia. After a 12-day trial, the Ontario Superior Court found the emergency physician negligent. In Shaw Estate v Handler, the Court of Appeal for Ontario has now dismissed his appeal and upheld that finding, bringing the family a measure of finality nearly a decade on.
It is not uncommon for a car accident victim to suffer further harm through medical negligence while being treated for accident-related injuries. In Midak v RSA, the Licence Appeal Tribunal denied non-earner benefits after finding the claimant’s traumatic brain injury arose from a later fall at a pain clinic, not the accident itself. The decision is a useful study in causation and the interplay between malpractice and statutory accident benefits.
The Team
Paul works with a law clerk and a legal nurse consultant in the firm's Toronto office. They are your day-to-day points of contact on a file.
Agnes Dyjach
Law Clerk
Elysia Semella
Legal Nurse Consultant
Davidson Cahill Morrison LLP
If you or your family has been harmed by medical care, or you are a lawyer seeking trial counsel for a malpractice or serious injury claim, Paul is ready to help. The first conversation is straightforward and without obligation.
Davidson Cahill Morrison LLP · 220 Bay Street, Suite 1400, Toronto · dcmlaw.ca