“Persuasive and persistent representation of my client’s interests is my priority while ensuring my client’s objectives are met, in each case, with a mind to their individual goals and desired outcomes.”

Cassandra Theune


Cassandra has extensive experience practicing in the area of insurance defence litigation having worked for one of Canada’s largest national insurer’s and at a prominent insurance defence firm in Toronto, Ontario prior to joining Jones Kopp Litigation in 2021.

Cassandra focuses her practice primarily on tort claims including personal injury, property loss, subrogation, professional liability, occupier’s liability, and commercial host claims.   She has also acted as trial counsel for plaintiff matters, which has provided her with a unique outlook of the issues and strategies on both sides of the bar.  She has jury trial experience and has appeared before the Superior Court of Justice, Ontario Court of Justice, and Ontario Small Claims Court.

After her call to the Bar, Cassandra worked at a respected firm in the Niagara region acquiring experience in multiple areas of law, working directly with a variety of clients.  She also has in-house counsel experience in a fast paced industry where she worked directly with executive level employees and provided legal services in corporate, commercial, privacy, and contract law.  This experience has provided her with a distinct understanding of the considerations her clients face while pursuing or defending ongoing claims and has helped Cassandra to guide her clients with compassion and to tailor her services to their specific needs.


  • Bachelor’s Degree, Law and Society, York University, 2008.
  • Bachelors of Education, University of Ottawa, 2009.
  • J.D., Faculty of Law, Western University, 2012.
  • Called to the Bar of Ontario, 2013.


  • Law Society of Upper Canada
  • Canadian Bar Association

We deliver results. Proportionate and appropriate file staffing plus creative thinking ensure practical, timely and cost effective litigation outcomes.


Allison Gaw

Corkett v. Ginn, 2021 ONSC 7434 (CanLII) In this personal injury case, the Plaintiff prepared a motion to strike the Defendant’s Jury Notice as a result of the COVID-19 pandemic in a stated effort [...]

Bahram Dehghan

Trilokie v Lasenby, 2015 ONSC 6376 In a complex case where the plaintiff seeks over $10.5 million from a motor vehicle accident, Bahram successfully argued a motion to compel the plaintiff to attend [...]

Renée A. Kopp

Recent Presentations and Workshops “How Close is Too Close? Avoiding Bias in Regulatory Decision-Making”, co-presented with Richard Steinecke and Erica Richler, Canadian Network of Agencies for Regulation Conference, Vancouver, British Columbia. “Disciplinary Proceedings & [...]