Jonathan Barr

Litigation Counsel

Jonathan Barr


Jonathan is a seasoned commercial and civil litigator with over 17 years of real courtroom experience conducting trials  (jury and non jury), applications, and appeals in Ontario’s Superior Court of Justice, the Commercial List, Divisional Court, and the Ontario Court of Appeal. He has also successfully represented clients in arbitrations and tribunal hearings at the License Appeal Tribunal, the Ontario Municipal Board, and the Association of Ontario Land Surveyors.

At the forefront of Whitelaw Twining’s Commercial and Civil Litigation practice in Toronto, Ontario, Jonathan has focused primarily on Commercial litigation, Construction matters and Real Estate & Real Property disputes.

Jonathan’s stellar reputation is built upon his time-tested platform for being a “GREAT” lawyer:

  • Good service
  • Relationships
  • Enthusiasm (fierce advocacy)
  • Ability
  • Trust

Jonathan is a fearless and passionate advocate who understands the needs of his clients.  He tirelessly strategizes on the best and most efficient ways to achieve his clients’ goals.

In his spare time, Jonathan enjoys travelling, playing guitar and singing with his band and spending time with his family and friends.


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LL.B., Queens University, 2005

B.A. (Political Science), Huron University, 2002


Professional Memberships & Affiliations

Called to the Ontario Bar in 2006

Member of the Canadian Bar Association