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Best HIE Lawyers in Mississauga, ON (2026)

For our 2026 list, we've chosen HIE lawyers serving Mississauga with a published record of their work. Published results inform our choices. Each firm's area of focus matters in our assessment. We also consider experience and client reviews.

Sources checked

5 lawyers and firms

Skyline of Mississauga
Photo: The Eloquent Peasant, CC BY 4.0, via Wikimedia Commons

The short answer

Our featured firm in Mississauga is Diamond & Diamond Lawyers LLP, where Jeremy Syrtash leads the medical malpractice group. Among the firms we reviewed, Neinstein Personal Injury Lawyers stands out. The firm publishes results on its site for birth-injury and brain-injury cases. The firm also lists HIE claims. The firm's communication draws reviewers' praise. When you call the firm, ask who would take on your child's claim. Fees need discussing, too. The Ontario law guide explains the starting rules, but ask a lawyer when Ontario's limitation period applies to your situation.

At a glance

  1. 1Diamond & Diamond Lawyers LLPJeremy SyrtashFeatured
  2. 2Neinstein Personal Injury LawyersFree consultation4.8 out of 5
  3. 3Sommers Roth & ElmalehFree consultationNo rating
  4. 4Howie, Sacks & HenryFree consultation4.8 out of 5
  5. 5Gluckstein LLPFree consultation4.6 out of 5

Best HIE Lawyers in Mississauga

  1. Featured
  2. Neinstein Personal Injury Lawyers logo2

    Neinstein Personal Injury Lawyers

    4.8592 Google reviewsRated 4.8 out of 5 on Google from 592 reviews

    Best for: Families seeking published injury results

    Neinstein Personal Injury Lawyers publishes a $14 million birth-injury result among its outcomes. The firm's site also reports several brain-injury results involving medical negligence. One result: $12.5 million.

    CallWebsiteFree case reviewIs this your firm?
    How they were picked

    Stood out in our review for the results it publishes and 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

  3. Sommers Roth & Elmaleh logo3

    Sommers Roth & Elmaleh

    Best for: Families wanting malpractice-only representation

    A man with cerebral palsy caused by severe hypoxic ischemic injury during birth received over $11 million, an award included in Sommers Roth & Elmaleh's published outcomes. Bring up that case with the firm if you're considering an HIE claim. The firm handles only medical malpractice.

    WebsiteFree case reviewIs this your firm?
    How they were picked

    Stood out in our review for how much of its work is medical malpractice and the results it publishes.

    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

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    Tell us what happened. A malpractice lawyer who serves Mississauga can look at it with you, and it costs nothing.

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  5. Howie, Sacks & Henry logo4

    Howie, Sacks & Henry

    4.8349 Google reviewsRated 4.8 out of 5 on Google from 349 reviews

    Best for: Families prioritising clear communication

    Howie, Sacks & Henry LLP's clients often describe being able to reach the firm. Clients say the firm explains things patiently. They were, in the reviewer's words, “always willing to answer my questions and explain things clearly.”

    CallWebsiteFree case reviewIs this your firm?
    How they were picked

    Stood out in our review for the recognition it has earned 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

  6. Gluckstein LLP logo5

    Gluckstein LLP

    4.637 Google reviewsRated 4.6 out of 5 on Google from 37 reviews

    Best for: Families considering an established firm

    Gluckstein Lawyers has operated since 1962. The firm has operated for decades. The firm's site lists birth-injury work and names claims involving HIE and cerebral palsy.

    CallWebsiteFree case reviewIs this your firm?
    How they were picked

    Stood out in our review for its years of experience and 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

Where they are in Mississauga

What clients say about these Mississauga lawyers

Google reviews of the firms on our lists, quoted as their clients wrote them and linked to where they were posted. We don't write, edit or pick reviews for pay.

  • David K.

    November 2025 · Mississauga, Ontario

    “Jim Davidson and his team at his firm are very experienced and professional in what they do. They cut no corners and handled my case with professionalism. He put me at ease throughout the legal process and showed me consistent support through my case. I highly recommend Jim and his team at Davidson Cahill Morrison LLP.”

    About Davidson Cahill Morrison LLPGoogle reviewRead it on Google

  • Zoha

    July 2026 · Mississauga, Ontario

    “​I want to formally express my deepest gratitude to Michelle Kudlats and the team at Neinstein Personal Injury Lawyers for their incredible support. As a young pedestrian who survived a motor vehicle accident, I was terrified and dealing with a situation I had never faced before. I was frantic, confused, and had no...”

    About Neinstein LLPGoogle reviewRead it on Google

  • Kate I.

    July 2026 · Mississauga, Ontario

    “⭐⭐⭐⭐⭐ I cannot recommend Jennifer Ilton and Yoni Silberman of Bogoroch & Associates LLP highly enough. After our serious motor vehicle collision on Highway 400 North in November 2023, they stood by us every step of the way. They fought diligently to protect our insurance rights while also providing something just...”

    About Bogoroch & Associates LLPGoogle reviewRead it on Google
See all reviews
How a malpractice claim usually moves in Ontario

  1. 1.Something went wrong

    Write down dates and names while they're fresh.

  2. 2.Get your records

    Ask for your full chart and test results.

  3. 3.Free case review

    A lawyer looks at what happened, free.

  4. 4.Medical opinion

    A doctor checks whether the care fell short.

  5. 5.Start the claim in time

    Your lawyer starts the claim before the deadline.

  6. 6.Settlement or trial

    Many claims settle. Some go to a judge or jury.

Your deadline: 2 years from when you found outRead the Ontario law guide

Malpractice claims in Mississauga: the rules that matter

The filing deadline in Ontario
  1. The clock startsWhen you found out, or should have
  2. Time to start a claim2 yearsMiss it and the claim is usually lost.
  3. 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.

Read the Ontario law guideWork out your own deadline

Basic limitation period in Ontario
2 years
Source
Ultimate limitation period
15 years
Source

Choosing an HIE lawyer in Mississauga

Start by asking who would take on your child's file. You may see HIE listed on a firm's site. The listing alone doesn't tell you how often the firm handles these claims. Have the lawyer describe birth-injury cases they've handled. Have the lawyer explain how they'd assess whether the care caused or contributed to your child's injury. A published award gives you a specific case to discuss with the lawyer. Your family's outcome can't be predicted from that award.

Use the first conversation well

  1. Discuss the records

    When discussing records, ask about the delivery notes and your child's chart. Those records may not suffice. Find out which additional records the firm needs, then ask how it would get them. Before the lawyer gives a view on the claim, have them explain what they still don't know.

  2. Identify the person responsible

    Find out who makes decisions about your file. Reviews about slow intake responses or case-handling concerns give you a reason to ask who'll answer your questions. If the firm declined your case, what happened next would matter; ask it to explain.

  3. Ask about expert reports

    You don't need an affidavit or certificate of merit to start an Ontario claim. The court's rules still require you to serve expert reports in practice. Those reports address the standard of care and causation. You'll want to know how the firm arranges those reports. Have it explain the costs, too.

Neinstein Personal Injury Lawyers, Sommers Roth & Elmaleh and Howie, Sacks & Henry LLP offer free consultations and contingency fees. At Gluckstein Lawyers, the consultation is free, but you'll need to check the contingency arrangement. You'll need to check both with Davidson Cahill Morrison LLP. The firm may decline your case even after a free consultation. You'll want to read the proposed fee agreement. Have the lawyer explain when payment is due and how it's calculated, then ask who pays expenses if the claim doesn't succeed.

Treat pressure to sign as a warning sign if fees haven't been explained. Another family's settlement isn't a sound basis for promises about yours. Reviews can tell you about the firm's communication. They can't tell you whether negligence caused the HIE. This is general information. It isn't legal advice. The Ontario law guide sets out the framework. For your child, ask an Ontario lawyer how the limitation rules apply.

Questions people ask

Which firm leads this Mississauga HIE lawyer list?
Neinstein Personal Injury Lawyers comes first on this list. The firm publishes a $14 million birth-injury result on its site. Several medical-negligence brain-injury results appear there, too. HIE appears on the site, too. Clients frequently praise communication and responsiveness in reviews. Next comes Sommers Roth & Elmaleh. Its practice is limited to malpractice. A published award concerns severe hypoxic ischemic injury during birth. Ask each firm which lawyer would assess the claim involving your child.
How long do we have to start an HIE claim in Ontario?
In Ontario, discovery starts the basic limitation period of 2 years. Treatment isn't always what starts that clock. Discovery depends on what you knew, or reasonably should have known: that you were injured and that a provider caused or contributed to the injury. You must also know that a lawsuit was appropriate. There's also a 15-year ultimate limitation period. Ask an Ontario lawyer to check your dates. The rules for minors may matter; that lawyer can explain whether they apply.
Does the limitation period run while my child is under 18?
The 2-year clock pauses for a claimant under 18 who doesn't have a litigation guardian for the claim. The 15-year ultimate period is likewise suspended for a claim arising while the claimant is a minor without a litigation guardian, as addressed in Wong v. Lui, 2023 ONCA 272. Another child's deadline may differ from yours, so don't use it to calculate when to file. An Ontario lawyer can tell you how those conditions affect your child's claim.
Can we speak to one of these firms without paying for a consultation?
Free consultations are offered by Neinstein Personal Injury Lawyers, Sommers Roth & Elmaleh, Howie, Sacks & Henry LLP and Gluckstein Lawyers. You'll need to check consultation charges at Davidson Cahill Morrison LLP. Contingency fees are also offered by the first three. At the other two, you'll need to check the arrangements. You'll want to know what's covered. Get the lawyer's explanation of fees and expenses before you agree to representation.
Do we need an expert report before starting an Ontario HIE lawsuit?
To start a claim in Ontario, you don't need an affidavit or certificate of merit. Expert evidence is still needed. In practice, reports on the standard of care and causation must be served under the court's rules. Have the lawyer explain how they'd assess those issues for your child. Then discuss who would cover the report costs. Being able to file without a certificate doesn't tell you whether the claim might succeed.
Is compensation for an HIE injury capped in Ontario?
Economic losses have no statutory cap. These include lost income or the cost of future care. Nationally, non-pecuniary damages are limited by the judge-made trilogy cap. The results on this list won't tell you what your child's claim might be worth. Each belongs to a particular case. Ask an Ontario lawyer which losses may be claimed and how the cap applies to your circumstances.

Sources

  1. Limitations Act, 2002, S.O. 2002, c. 24, Sched. B, Government of Ontario (e-Laws)
  2. Claims from minors and the 15-year ultimate limitation period in Ontario, Borden Ladner Gervais LLP
  3. Non-Pecuniary Damages Upper Limits (monthly indexed figures, 2024 to 2026), McKellar Structured Settlements
  4. Key Numbers for 2025 (trilogy cap and indexation), McCague Borlack LLP
  5. Malpractice Center methodology, Malpractice Center

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