Paul Cahill - Toronto Medical Malpractice Lawyer

Paul Cahill - Toronto Medical Malpractice Lawyer Experienced medical malpractice and personal injury lawyer with a proven track record of success

Paul Cahill is an experienced medical malpractice and personal injury lawyer with a proven track record of success.

The most useful thing a medical malpractice lawyer can sometimes do for a prospective client is tell them not to sue.Aft...
05/06/2026

The most useful thing a medical malpractice lawyer can sometimes do for a prospective client is tell them not to sue.

After nearly two decades of these cases in Ontario, the question I hear most on a first call is whether someone can bring a claim. Yes, you can. The harder question is whether you should.

In a new piece on the blog, I walk through what I tell new clients every week. What Ontario law actually allows. The cap on general damages. Why proving causation defeats most cases that look strong on paper. The cost of running a claim against a defence funded by the CMPA. Why only about 30% of medical malpractice cases settle. And the two-year limitation period that quietly closes the door on otherwise meritorious claims before patients even start looking for a lawyer.

For a small number of patients and families, particularly those facing catastrophic, lifelong consequences from clearly substandard care, civil litigation is the right answer. For many others, the candid advice is that a lawsuit will do more harm than good.

Worth a read if you, a family member, or a colleague is weighing the question.

Yes, you can sue for medical malpractice in Ontario. The harder question is whether you should. After two decades of these cases, the candid advice for many prospective clients is to think very carefully before going forward, and in some cases, not to go forward at all.

When does a surgical error stop being negligence and become a crime?It’s a question that arises infrequently, but the ca...
04/20/2026

When does a surgical error stop being negligence and become a crime?

It’s a question that arises infrequently, but the cases where it does are instructive. This post looks at real examples from Canada and the U.S., and the legal threshold that must be met before criminal liability is engaged.

Medical malpractice is almost always addressed through civil litigation or professional discipline. However, in rare and exceptional circumstances, surgical or perioperative errors can give rise to criminal liability. These cases are important not because they are common, but because they illustrate...

Court allows amendment to correct misnomers in fatality medical malpractice lawsuit. Though caselaw is generally support...
02/09/2026

Court allows amendment to correct misnomers in fatality medical malpractice lawsuit. Though caselaw is generally supportive of correcting misnomers, they can sometimes be opposed to the peril of the moving party.

Estate of Henders v. Lakeridge Health Oshawa, 2026 ONSC 701 In a significant decision for medical malpractice and long-term care litigation in Ontario, the Superior Court of Justice has confirmed that plaintiffs may correct “John Doe” pleadings to name specific doctors and care providers after t...

Recent Court of Appeal decision on contingency fee reduction in a large birth injury settlement. Although the case did n...
01/13/2026

Recent Court of Appeal decision on contingency fee reduction in a large birth injury settlement. Although the case did not go to trial, it went through several pre-trials signaling significant risk and effort put forward by the plaintiffs' lawyers.

Despite this, the Court of Appeal upheld the lower court's decision to reduce the fees charged.

In Leduc v. Dufour, the Ontario Court of Appeal dismissed an appeal by a plaintiff-side law firm and upheld a trial judge’s decision to significantly reduce a contingency fee in a major birth injury medical malpractice case . Case Background The case arose from a 2009 birth at Sudbury Regional Hos...

I am overjoyed that the family of Elisha Shaw may now have some finality from her tragic passing just over 10 years ago ...
12/16/2025

I am overjoyed that the family of Elisha Shaw may now have some finality from her tragic passing just over 10 years ago today.

On September 6, 2023, the Honourable Mr. Justice William LeMay of the Ontario Superior Court of Justice found Dr. Handler negligent in his care of Elisha, which resulted in her death.

Dr. Handler appealed the judgment against him to the Court of Appeal for Ontario. Today, the appellate court released its decision in Shaw Estate v. Handler dismissing Dr. Handler’s appeal and upholding the finding of medical malpractice.

I would like to thank my partner, Chris Morrison, who took the lead on the appeal. His appellate advocacy skills are second to none and played an integral role in securing the successful outcome of this case.

I would also like to thank my associate, Hudson Chalmers, who played a vital role at trial helping to secure the judgment that became the subject of his appeal.

I was retained by Merton Thompson ("Merton") in 2016. His young wife Elisha Shaw ("Elisha"), mother to his 4 children, had died after being discharged from the emergency department. Merton came to me looking for answers and accountability. A Statement of Claim was issued in 2017 alleging negligence....

Proud to be part of this amazing team!
10/30/2025

Proud to be part of this amazing team!

Davidson Cahill Morrison LLP is proud to announce its repeated inclusion in the prestigious "Best Law Firms" rankings for 2026. The firm has once again achieved National and Regional Tier 1 rankings, underscoring its position as a leader in the Canadian legal landscape. This recognition highlights t...

Does a psychiatrist owe a duty of care to a non-patient killed by their patient?The Court of Appeal says they might depe...
10/21/2025

Does a psychiatrist owe a duty of care to a non-patient killed by their patient?

The Court of Appeal says they might depending on the circumstances, particularly if there is no conflict of duty between the patient and non-patient.

On February 11, 2019, Bradley McKee stabbed his father, William McKee, to death. At the time of the stabbing, Bradley was 27 years old; he had a long history of serious addiction and mental health issues.The claim alleged that the respondents were negligent in treating Bradley and that they were neg...

On August 22, 2025, the Ontario Superior Court of Justice found a physician negligent for not referring a 17 week pregna...
10/03/2025

On August 22, 2025, the Ontario Superior Court of Justice found a physician negligent for not referring a 17 week pregnant mother who had just had a possible rupture of membranes for an urgent obstetrical assessment that may have led to antibiotics and a dilation and curettage procedure to prevent a potential ascending infection.

Unfortunately, without the benefit of an obstetrical assessment and subsequent treatment following her pPROM, the patient developed sepsis and went into septic shock. As a result, she suffered an amputation of her left leg below the knee, partial amputation of her right foot, kidney failure leading to a transplant, stroke, compromised ability to use her right arm and seizures.

On August 22, 2025, a judge of the Ontario Superior Court of Justice found emergency medicine physician Dr. Angela Cavanagh negligent for not referring a 17 week pregnant mother who had just had a possible rupture of membranes (pPROM) for an urgent obstetrical assessment that may have led to antibio...

I'm proud to be recognized by Best Lawyers in Canada for a 5th consecutive year for my work in medical negligence and pe...
09/04/2025

I'm proud to be recognized by Best Lawyers in Canada for a 5th consecutive year for my work in medical negligence and personal injury litigation along with 7 of my colleagues in their respective practice areas.

Davidson Cahill Morrison LLP is pleased to announce that several of its distinguished lawyers have been recognized in the 2026 edition of The Best Lawyers in Canada™, underscoring the firm's exceptional expertise in civil litigation, insurance law, medical malpractice, and personal injury law.The ...

Alleged delayed diagnosis of subarachnoid hemorrhage lawsuit dismissed by judge in British Columbia. The Court found no ...
08/27/2025

Alleged delayed diagnosis of subarachnoid hemorrhage lawsuit dismissed by judge in British Columbia. The Court found no "thunderclap" headache that would have raised suspicion for this diagnosis.

On July 21, 2025, the Supreme Court of British Columbia dismissed a medical malpractice action against an emergency medicine physician for allegedly failing to order a CT scan and lumbar puncture to rule out a potential subarachnoid hemorrhage (SAH) in a 54 year-old male who had presented with a chi...

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Toronto, ON
M5J2W4

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