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Greg Neinstein

Managing Partner,
Toronto Personal Injury Lawyer




Graduate of Osgoode Hall Law School



  • Call to the Bar (Ontario) in 1999
  • Certified Specialist by the Law Society of Ontario
  • Repeatedly recommended by the Canadian Legal Lexpert Directory

Lexpert Ranked Award, 2024
Law Society Of Upper Canada
Toronto ABI Network
Martindale-Hubbell Peer Rated Award, 2024



Greg is the Managing Partner at Neinstein Personal Injury Lawyers LLP. His practice focuses on catastrophic injury and complex insurance claims including motor vehicle accidents and occupier's liability cases. Greg is well-known as a skillful negotiator; his clients refer to him as the ultimate problem solver. Greg employs a strategic, multifaceted, and assertive approach to his work that protects his clients' rights from day one.

Greg's courtroom success has helped establish precedents benefitting the general public in addition to his clients. He has been voted by his peers as a leading expert in his field since 2012 in the Canadian Lexpert Directory®. He has also been certified as a specialist in civil litigation by the Law Society of Ontario.


Member Of

  • Canadian Bar Association
  • Law Society of Ontario
  • The Advocates Society
  • Ontario Brain Injury Association
  • Brain Injury Society of Toronto
Greg Neinstein, Toronto Personal Injury Lawyer


Greg Neinstein


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Lawyer's Team

Renae Cassells

Raquel Kilpatrick


Neinstein Medical Malpractice Team

Our Legal Team 

We are an award-winning team of medical malpractice lawyers who focus on serving victims of medical malpractice and trying their most complex cases. Our lawyers are here to listen and are prepared to act on your behalf as we work to achieve the best possible outcome.

At Neinstein, our team is connected by our enduring commitment to our clients and their families. Through our specialized experience, we understand the challenges you may face and offer our steadfast support.

In Compensation*


What You Can Expect

Experienced Legal Team

When medical mistakes happen, lives and livelihoods are often at risk. As lawyers for medical negligence, and as people who care about the well-being of our valued clients, we understand what this means to you and your family, and advocate wholeheartedly for a just and advantageous malpractice settlement. While some clinical negligence claims may be resolved outside of the court system through mediation, it is important to recognize that your medical malpractice lawyer at Neinstein is also prepared to stand by you and advance your case should it go to trial.

Our medical malpractice lawyers have developed proven strategies which can strengthen your case and protect your rights to financial security and restitution, while providing you the opportunity to focus on your road to recovery.

The excellent services we provide have led our lawyers to be repeatedly recommended by past clients and Lexpert, Canada's leading source of law business news, in the practice area of personal injury law including medical malpractice.

Experienced in Medical Negligence Cases

Not all law firms can offer in-depth knowledge and insight vital for a successful medical malpractice claim. At Neinstein, a medical malpractice lawyer who has been specifically trained and practiced in cases like yours will be a powerful ally.

When you choose to retain a medical malpractice lawyer at Neinstein, you gain the peace of mind that can only come from proven methods and pertinent experience. Our team has assisted with countless clinical negligence claims over the years, including cases related to birthing injuries, acquired and hypoxic brain injuries including stroke, tPA administration and atrial fibrillation, surgical negligence, sepsis and cardiac arrest, defective hernia mesh, cancers of the breast, colon, lung and prostate, and instances of failure to monitor as well as errors in nursing and medication.

Prompt and accurate diagnosis and treatment can mean the difference between good health and undue hardship, or even life and death. If you or a loved one has been misdiagnosed or have been subject to a delayed diagnosis, your well-being or the welfare of a family member may be at stake.

Our team at Neinstein can help you determine if your case qualifies for a medical malpractice claim and can assist you by providing the means for remuneration and the possibility of a smoother recovery.

As lawyers in the field of personal injury with a focus on medical malpractice, our lawyers at Neinstein can effectively represent you in the event of clinical error.

Driven to Support You

At Neinstein, our team is connected by our enduring commitment to our clients and their families. Through our specialized experience, we understand the challenges you may face and offer our steadfast support. We encourage our clients to call us with any questions and concerns they may have, and we provide access to crucial healthcare as well as resources to protect dependent families.

A case is as unique as the individual, and we recognize that the legal process can at times be a long and difficult emotional journey. We are here to help you on the road ahead. Listen to the testimonials given by our past clients who have experienced our award winning service.