Jonathan J. Barr

Jonathan Barr

Leading Hummingbird Lawyers Civil Litigation practice, Jonathan brings more than15 years of real courtroom experience to the table.

Jonathan has conducted 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.

Jonathan 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.

Focusing his practice primarily on Corporate and Commercial litigation and Real Estate & Real Property disputes, Jonathan’s practice 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.

When he is not lawyering, Jonathan enjoys spending time with his family and playing guitar.


Queens University, Faculty of Law, LLB/JD (2005)
University of Western Ontario, Bachelor of Arts, Political Science

Bar Admissions

Member, Ontario Bar (2006)

Professional Associations / Distinctions

Law Society of Ontario
Canadian Bar Association
Ontario Bar Association
Advocates Society

Practice Areas

Civil Litigation

Practice Honours

Fasken Martineau LLP Prize in Civil Procedure
David Sabbath Prize in Land Transactions
Sabbath Prize in Entertainment Law

Recent Publications / Quotes

The Litigation Team Is By Your Side


Phone: 905.731.1911 x228


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    Hummingbird Lawyers strategically assists businesses and individuals in the areas of business and corporate law, commercial and residential real estate transactions, wills and estates, employment law, family and divorce, litigation, and immigration.

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