Catherine DiMarco

Called to the Ontario Bar in 2005, Catherine has practiced law for more than 15 years,
primarily dealing with construction claims and general civil litigation. Catherine is certified as a Specialist in Construction Law by the Law Society of Ontario.

Catherine is formerly an Executive member of the Ontario Bar Association Construction and Infrastructure Law Section, the Canadian Construction Association Board of Directors and Executive member, and Canadian Association of Women in Construction Board of Directors.

In 2020, Catherine was named as a Fellow of the Construction Lawyers’ Society of America. Catherine is a member of the Manufacturers, Suppliers and Services Council of the Canadian Construction Association, The Advocates’ Society, the Ontario Bar Association Construction and Infrastructure Law Section, the Women’s Executive Network and the Toronto Lawyers Association.

Catherine is a volunteer with ProBono Ontario, assisting Ontarians who have essential legal needs but can’t afford a lawyer.

Catherine is one of the founding partners of Heal & Co. LLP after having practiced at a
prominent Toronto-based full-service firm, including as a partner. Catherine regularly
leads Heal & Co.’s sponsorship, speaking and attendance at the events and seminars hosted by these organizations.

Catherine was previously with the Ontario Ministry of Natural Resources and worked for a number of years for the Aviation Flood and Fire Management Branch where she received the Amethyst Award for the Branch’s efforts during the Eastern Ontario ice storm of 1998.

Catherine’s practice encompasses many different sectors of the construction industry. She represents owners, general contractors, subcontractors and suppliers, as well as design and engineering professionals, both on the claims side and on the defence of claims, in the insurance and non-insurance context. Catherine has defended public authorities, including municipalities, in matters involving allegations of negligent design, supervision and inspection.

In November 2012, Catherine obtained the Osgoode Certificate in Construction Law.

Catherine has also taught a course on construction law at the George Brown College School of Architectural Studies and Construction Management and Trades.

Catherine regularly attends at the Superior Court of Justice and before arbitrators on a variety of construction and civil matters.

Catherine DiMarco was selected by her peers for inclusion in The Best Lawyers in Canada in 2021 in the practice area of construction law.