Best Medical Malpractice Lawyers in Waterloo, ON (2026)
To compare firms serving Waterloo, this evidence-based 2026 list looks at their malpractice work and client reviews, then considers their experience and recognition.
Our featured firm in Waterloo is Diamond & Diamond Lawyers LLP, where Jeremy Syrtash leads the medical malpractice group. Bergel Magence LLP stands out among the firms reviewed here because clients describe clear communication and the firm has been around since 1972. Ask which lawyer would handle your medical claim and who would pay case costs before you choose the firm. The Ontario law guide can help you prepare questions for a lawyer about limitation rules.
Jeremy Syrtash leads the medical malpractice litigation practice at Diamond & Diamond Lawyers LLP. He earned a BA from Yeshiva University (2010) and a JD from the University of Ottawa (2013), was called to the Bar of Ontario in 2014, and has acted as counsel and co-counsel in medical malpractice cases across Canada, many involving pediatric and obstetrical negligence.
Called to the Bar of Ontario, 2014 · JD, University of Ottawa · Best Lawyers: Ones to Watch in Canada, Health Care Law (2024 to 2027)
None of the other firms listed goes back as far as Bergel Magence LLP, established in 1972. Birth injury claims have a place on its site, which also covers surgical errors and misdiagnosis. Although clients report frequent updates and supportive service, one reviewer says their experience at intake was poor.
Stood out in our review for its years of experience and what its clients say.
We order firms by how much of their work is medical malpractice, the results they publish, what their clients say, their experience, their standing with the regulator and the recognition they have earned, all from public records and the firms' own sites. How lists are made
Howie, Sacks & Henry lists birth injury claims on its site, including those involving HIE and cerebral palsy. If your family is worried about delivery care, ask about the birth injury work listed on its site, which also covers nursing home negligence. Founded in 2000, the firm has recognition from Lexpert as well as Best Lawyers.
Stood out in our review for the recognition it has earned and its years of experience.
We order firms by how much of their work is medical malpractice, the results they publish, what their clients say, their experience, their standing with the regulator and the recognition they have earned, all from public records and the firms' own sites. How lists are made
Not sure who to call first?
Tell us what happened. A malpractice lawyer who serves Waterloo can look at it with you, and it costs nothing.
Best for: Malpractice and disability insurance concerns
If your concerns involve medical treatment and a disability claim, HIMPRO Personal Injury and Long-Term's listed work in disability insurance and medical malpractice is worth discussing. Among the birth injuries identified on its site is Erb's palsy. The site lists surgical errors as well as misdiagnosis.
Stood out in our review for the recognition it has earned.
We order firms by how much of their work is medical malpractice, the results they publish, what their clients say, their experience, their standing with the regulator and the recognition they have earned, all from public records and the firms' own sites. How lists are made
When you speak to the lawyer, explain what happened and when you learned your injury might relate to your care. They'll check Ontario's 2-year discovery-based limitation period and look for other rules that apply to your claim. If a child is involved, ask how litigation guardian rules affect the claim.
Records and medical assessment
The lawyer reviews your medical chart to assess the claim, including whether the care caused your injury or contributed to it. Medical opinions on the standard of care look at what care you should have received in those circumstances. Causation opinions look at whether the care led to the harm you suffered.
Starting the lawsuit
You must start your claim while the applicable limitation period is still running. Ontario doesn't require an affidavit or certificate of merit to start a claim. Ask what the lawyer still needs to investigate before filing, and whether those unanswered questions affect the decision to go ahead.
Expert reports
Expert reports on the standard of care and causation must, in practice, be served as the court's rules require. Those reports examine the provider's care for any failing, then consider whether that failing caused the injury you're claiming for.
Assessing losses and next decisions
The lawyer looks at income you've lost and care you'll need when assessing losses. Ontario has no statute that caps compensation for economic losses. Pain and suffering fall under non-pecuniary damages, which are limited by the national judge-made trilogy cap. Ask what happens next with your claim after the lawyer has assessed those losses.
Malpractice claims in Waterloo: the rules that matter
The filing deadline in Ontario
The clock startsWhen you found out, or should have
Time to start a claim2 yearsMiss it and the claim is usually lost.
At the very most15 yearsafter the treatment, with a few exceptions
Limits on damages in Ontario
Pain and sufferingCapped at about $484,330
All damages togetherNo overall cap
Expert paperworkNo affidavit or certificate of merit is required to start a claim.
A written agreementThe share the lawyer takes, set out before work starts.
If you recover moneyThe agreed share and the case costs come out of it.
If the claim failsNo legal fee on a contingency agreement. Ask about costs.
Every listed firm says it works on contingency, meaning the lawyer receives a share of any recovery, but you won't owe a legal fee if the claim fails. Besides the lawyer's fee, which expenses would you owe? Medical records and medical opinions cost money, as do court fees, and you'll face those charges separately from what you pay the lawyer. Don't sign until you know who pays those costs up front and whether you must repay the money even if the claim brings no recovery. The firms also offer a free consultation. Get the fee calculation written down after asking what the first discussion covers, including a written explanation of how the firm deals with expenses.
According to each of the three listed firms, you can get a free consultation and a contingency arrangement.
What to bring to your first call
Your treatment dates in writing, with the date you first suspected a connection to the injury
Copies you already have of medical charts and test results
If a birth injury concerns you, the delivery notes
Who was involved in your care, listed by name
Information about lost income or future care needs, along with bills
Letters you've received from the hospital or an insurer
Your questions, written out in a list
If the claim involves a child, any information about a litigation guardian
Questions to ask a lawyer
1For this kind of medical care, how many claims have you handled?
2If I have questions about my file, which lawyer will be responsible?
3To assess my injury, how will you check whether the care caused it?
4Given my situation, what's the applicable limitation period?
5During your free consultation, what do you cover?
6What's the calculation used for your contingency fee?
7If there's no recovery, who pays the case expenses?
8If you decide you can't continue my claim, what happens next?
Choosing a malpractice lawyer serving Waterloo
What care concerns you? That's your starting point. Although every firm here lists medical malpractice alongside other claims, you'll want to discuss a missed diagnosis differently from an injury that happened during delivery. Ask whether they've handled files involving the treatment you're concerned about. A firm may have years of personal injury work without answering that question.
Before planning a visit, check where the firm's office actually is. Bergel Magence LLP's office is in Guelph, a 23 km trip from Waterloo, while the other listed offices are 3 km away in Kitchener. Can you have the first discussion remotely, and where would you go if a later appointment needed an in-person visit?
Ask how the firm will assess your claim
Which lawyer will be responsible for your file while the firm reviews your chart?
When the firm obtains medical opinions, how will those opinions address your care and whether it caused your injury?
What claims like yours has the lawyer handled, apart from results they've achieved in unrelated accidents?
Who can you reach between major updates, or turn to with questions if the firm can't keep handling your file?
Client reviews can show you how a firm keeps in touch, but even good communication isn't enough to prove what happened in your medical claim. None of these firms has published malpractice results available here for you to judge their work. During the consultation, ask which similar cases the firm has handled and what it still needs to learn about yours; notice whether you can follow its explanation.
Understand the agreement before signing
Each listed firm says it offers a free consultation and works on contingency. Although the consultation won't cost you anything, ask the firm what it will review when you first speak with them. Under a contingency arrangement, the lawyer gets a share of any recovery, but there's no lawyer's fee to pay if your claim fails. What case expenses are charged apart from the lawyer's fee?
Who pays for records and medical opinions while your claim is underway, and what would you owe if there's no recovery? Ask for those terms in writing. If someone promises an outcome or brushes aside your questions about expenses, be wary of working with them. This page isn't legal advice, just general information; an Ontario lawyer will need to look at your situation.
Questions people ask
Which firm stands out among the Waterloo-area firms reviewed?
Because Bergel Magence LLP dates to 1972 and reviews describe regular updates and supportive service, it stands out among these firms. You'll find its office in Guelph, 23 km from Waterloo. The firm's history alone won't tell you whether it's right for your claim. Ask who would review your records before you choose, and whether the firm has handled claims involving the same treatment.
How long do I have to start a medical malpractice claim in Ontario?
The basic limitation period runs for 2 years from when you discover the claim. Discovery means knowing, or reasonably being expected to know, that you've been injured and the health care provider contributed to it, as well as whether a lawsuit was appropriate. A 15-year ultimate period also applies in Ontario. You can't simply count forward from the treatment date. Ask an Ontario lawyer how your circumstances affect this.
Do different deadlines apply to a child's claim?
Yes. Until the claimant turns 18, the 2-year period doesn't run if there's no litigation guardian for the claim. As addressed in Wong v. Lui, 2023 ONCA 272, the 15-year ultimate period is also suspended when a claim arises while the claimant is a minor without a litigation guardian. For the child's claim, ask an Ontario lawyer to explain how this rule applies.
Do I need a medical expert's certificate before starting a claim?
Ontario doesn't require an affidavit or certificate of merit before you start a medical malpractice claim. That doesn't replace medical evidence. Expert reports on the standard of care and causation must, in practice, be served as the court's rules require. Before those opinions are obtained, ask how the lawyer will get them and who pays for them.
Can I speak to one of these firms without paying a consultation fee?
Although all three listed firms say consultations are free, ask what you'll get during that conversation, including whether they'll review your records. According to each firm, it also works on contingency. If the claim fails, there's no legal fee; if there's a recovery, the lawyer receives a share of it. Before signing, have a separate discussion about case expenses.
How long will a malpractice claim take?
You won't get a fixed completion time for malpractice claims from these firms. The claim can't move forward without an assessment of the care and how it relates to the injury, with expert reports served under Ontario's court rules. A promised finish date won't answer what you need to know: ask what the lawyer still needs to investigate in your file and when you'll hear from them next.
What should I do before calling a lawyer?
When writing down your treatment dates, include when you first suspected the care contributed to an injury. Along with any relevant hospital letters, gather the medical records you already have. Include questions about the care and what you need now. Because discovery involves more than the treatment date, promptly ask an Ontario lawyer to check which limitation period applies to you.
Can I contact these firms if a loved one died after medical care?
On their sites, Bergel Magence LLP and Howie, Sacks & Henry include wrongful-death claims among the matters they cover. If you'd like the care your loved one received reviewed, you can ask them. To find out who may bring a claim and which limitation rules apply, ask an Ontario lawyer. Even if someone died after treatment, that alone doesn't establish negligent care.
Is there a limit on the compensation a claim can seek?
For economic losses such as lost income or future care, Ontario has no statutory cap. For non-pecuniary damages, including pain and suffering, the national judge-made trilogy cap sets a limit. You can't work out a particular claim's worth from those rules alone. When a lawyer assesses your claim, ask how your documented losses and the medical evidence affect that assessment.
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Jeremy Syrtash
