Best Lawyers in Canada for Professional Malpractice Law

Brooke F. Smith is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Negligence and Professional Malpractice Law. Brooke F., who practices law in Ottawa, Ontario, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brooke F. is held by other top lawyers in the same geographic and legal practice area.

Donald Dow is a partner in the firm's Ottawa office practising in the advocacy department. Donald’s practice is focused in the area of medical defence litigation, health law and professional disciplinary proceedings. Donald has over 17 years of experience in malpractice litigation, medical device/instruments liability claims, class actions and has handled numerous civil trials. He has appeared as counsel at the Ontario Court of Appeal and the Supreme Court of Canada. Donald heads our Ot...

Tim Ryan is a partner in Gowling WLG's Calgary office. He practises actively in the area of health law, professional regulation and professional liability. Tim's practice includes class action proceedings, administrative law and the defence of medical, pharmacist and engineering malpractice cases. He also has an interest in public and private international law matters. While at Cambridge, Tim concentrated his studies in public and private international law, including studies at the Lauterpach...

Anne Tardif is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Corporate and Commercial Litigation, Director and Officer Liability Practice and Professional Malpractice Law. Anne, who practices law in Ottawa, Ontario, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Anne is held by other top lawyers in the same geographic and legal practice area.

Valerie is a senior member of our Litigation Group and is a highly respected member of the litigation bar. In addition to her extensive experience as trial counsel, she has appeared as appellate counsel before both the Ontario Court of Appeal and the Supreme Court of Canada. With more than 25 years of experience at the Bar, Valerie has demonstrated established expertise in damages analysis, including business loss claims, business and share valuations, and real property valuations. She has ex...

Paul carries a practice of complex disputes that demand subject-matter experience and understanding. He has expertise in contract disputes, infrastructure and construction disputes, health law, employment law, shareholder disputes, oppression claims, professional negligence, and product liability matters. Paul has appeared at all levels of court in Ontario, including as trial counsel in jury and non-jury matters, at the Federal Court and the Federal Court of Appeal, and in a range of administ...

Gavin Cameron is a litigator in Vancouver with a focus on commercial disputes and white-collar criminal investigations. Appearing as successful counsel in more than 100 reported decisions, including more than thirty appeals, he advises on contractual disputes, shareholders’ remedies, defamation, commercial fraud, and regulatory prosecutions. A significant part of Gavin’s practice involves acting for individuals and corporations subject to criminal and quasi-criminal investigations...

John Singleton is a principal legal figure in the country’s construction industry, having played key roles in major developments across Western Canada. He founded the firm in Vancouver, in 1982, with a vision of creating a practice that would stand out for its expertise in construction and infrastructure law. Today, Singleton Urquhart Reynolds Vogel LLP serves clients across the country and is recognized internationally for its knowledge and insight. John has acted as Counsel in precede...

Valérie Déziel represents and advises healthcare institutions, professionals, professional bodies, and trustees. She regularly appears before civil courts and disciplinary bodies. She has a keen interest in personal injury assessments. She is respected by her peers and stands out for her listening skills and the innovative solutions she offers.

Maureen Murphy is a partner in the firm’s Ottawa office. She practices in the areas of medical law and privacy law. She has experience representing clients before the Federal Court, Superior Court of Justice, as well as various administrative tribunals. Maureen has a particular interest in information technology and privacy law issues that affect medical professionals. Maureen provides businesses with advice on how to comply with Canada’s privacy laws. She assists clients in devel...

Michael is a tested litigator with 30 years of demonstrated performance and results in complex litigation within British Columbia and elsewhere in Canada. Michael is primarily dedicated to representing his corporate and individual clients in litigation. With broad experience in civil, criminal, administrative and constitutional law cases, including a great deal of trial and appellate work, he represents the interests of those clients in formal disputes involving professional liability and dis...

Stephanie Doucet is a top attorney recognized by Best Lawyers in the practice area(s) of Professional Malpractice Law. Stephanie, who practices law in Ottawa, Ontario, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephanie is held by other top lawyers in the same geographic and legal practice area.

Beth Allard is experienced counsel in various commercial disputes involving complex contractual, tortious and regulatory legal issues, providing both litigation advice and negotiating successful and strategic resolutions. She regularly advises and assists clients on matters relating to tendering, procurement, project delivery and management, liens and dispute resolution. Ms. Allard's practice also covers a range of liability defence work for design professionals, financial professionals, dire...

Claudia Déry is the Canadian co-head of our construction and engineering team. She has advised and represented before the courts a number of clients in construction-related matters, including major public-private partnership projects. She has experience in drafting tender documents and construction law topics and conducts the annual review of construction case law for the Canadian Bar Association. She has been ranked in the Best Lawyers in Canada since 2006 in the area of construction ...

Susan Gunter, partner since 2002 at Dutton Brock LLP, holds an LLM in Civil Litigation (Osgoode), an LLB (UNB) and was called to the Ontario Bar in 1996. Susan is recognized in The Best Lawyers in Canada (Products Liability Law, Insurance Law, Personal Injury Litigation, Professional Malpractice Law and ADR) and in the Canadian Legal Lexpert Directory as Most Frequently Recommended Personal Injury - Represents Defendants . Her litigation practice in defence of domestic and international corpo...

Dara M. Lambe is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law, Medical Negligence and Professional Malpractice Law. Dara M., who practices law in London, Ontario, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Dara M. is held by other top lawyers in the same geographic and legal practice area.