Skip to Main Content
You are now in the main content area
Katherine Di Tomaso

Katherine Di Tomaso

Areas of ExpertiseCivil Litigation, Insurance Law, Tort Law, Commercial Litigation, Contract Law, Personal Injury Law, Insurance Coverage Law, Municipal Liability, Professional Negligence, Product Liability, Property Loss, Disability Law, Human Rights Law

Katie Di Tomaso is a knowledgeable and trusted civil litigator at Stieber Berlach LLP with 20 years of practical experience acting for insurers, businesses, governments, public entities such as children's aid societies, and individuals in defending complex tort litigation matters including: personal injury, occupiers’ liability, motor vehicle litigation, municipal liability, professional negligence, product liability, directors’ and officers’ liability, property loss, disability claims, health matters, subrogation matters, human rights complaints, employment practices, workplace investigations, bankruptcy and insolvency, commercial litigation, defending insurance coverage claims, and providing insurance coverage opinions. Katie's practice also involves appellate litigation.

In 2024, Katie received the prestigious OBA Joel Kuchar Award for Professionalism and Civility in recognition of her dedication to the highest ideals of the legal profession.

Katie has appeared as lead counsel at the Court of Appeal for Ontario, Superior Court of Justice, Federal Court of Canada, Small Claims Court, Human Rights Tribunal, and various Tribunals governing self-regulated health care professionals, both in person and virtually.

Known for her outstanding client service, keen problem solving abilities, sound judgment, and utilizing technology within her practice, clients depend on Katie for her skillful application of civil litigation tools to provide solutions and resolve their issues.

Graduating from University of Toronto (with High Distinction) and Western University Faculty of Law, she possesses a strong commitment to academic and intellectual excellence and has earned numerous scholarships and awards including a Governor General’s Medal for academic excellence, Silver Medalist from University of Toronto, Cressy Leadership Award, Bereskin & Parr LLP Prize for top Intellectual Property Law student, and the CBIA’s Wilcox Award for top Insurance Law student in Canada.

Katie has demonstrated a commitment to legal writing on civil litigation issues and has recently published chapters contained within civil litigation publications including Annual Review of Civil Litigation (Carswell: 2018), Civil Procedure and Practice in Ontario (CanLII: 2021, 2022, 2023, 2024) and The Advocates’ Quarterly (Thomson Reuters: 2024).

She contributes to her legal community and community at large as Ontario Bar Association Insurance Law Section Chair, Ontario Bar Association Toronto Region Council Member, Canadian Bar Association Insurance Law Section Secretary, Lincoln Alexander School of Law Civ Pro Mentor, Tort Law Moot Executive Committee Co-chair, Trial and Error Bootcamp lecturer and judge, lecturer at the Ontario Bar Association, The Advocates’ Society, Ontario law schools and universities, mentor, moot judge, mock trial judge, writer and editor, and Board Member for a children’s charity where she is a significant fundraiser and advocate. In 2022, Katie was awarded a Queen Elizabeth II's Platinum Jubilee Award recognizing her significant civic contributions.