Sean Pierce


Telephone: 647-245-2371
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Assistant: Janine Brown
416-855-0401 ext.0500 | | Download Janine's Vcard

Sean Pierce has a diverse civil litigation practice. Prior to joining Chernos Flaherty Svonkin LLP, Sean served as a law clerk to Associate Chief Justice Alexandra Hoy, Justice David Paciocco, and Justice Mahmud Jamal of the Court of Appeal for Ontario. He previously completed his articles at the Constitutional Law Branch of Ontario’s Ministry of the Attorney General – Civil Law Division. Sean also worked as a legal researcher for the Long-Term Care Homes Public Inquiry, chaired by Justice Eileen Gillese.

Sean obtained his BCL and LLB from McGill University. Prior to attending law school, Sean obtained a Bachelor of Arts (Honours) and a Master’s Degree in political studies from Queen’s University. He also completed the non-partisan Parliamentary Internship Programme, where he assisted both government and opposition Members of Parliament.


Sean has represented

  • a defendant in a civil contempt proceeding involving claims of fraud and breach of a Mareva order
  • a financial institution bringing a claim for breach of confidence, breach of contract, and breach of fiduciary duties resulting from employee departures
  • a leading private equity manager in a contractual dispute regarding loan agreements
  • a former client of an accounting firm bringing a claim for negligence relating to tax returns
  • landlords and tenants bringing and defending claims involving commercial lease agreements


Sean Hanley & Sean Pierce, “Of Dominant Tides: Desgagnés Transport Inc. v. Wärtsilä Canada Inc. and the Growing Acceptance of Provincial Jurisdiction in Maritime Matters” (2021), 100 SCLR (2d) 227.


The Advocates’ Society
Canadian Bar Association
Toronto Lawyers Association

Bar Admissions

Ontario, 2019


LLB/BCL, 2017
McGill University

MA, 2012
Queen’s University

BA(H), 2011
Queen’s University


Daniel Mettarlin Memorial Scholarship, 2017

Chief Justice Greenshields Prize in Criminal Law, 2017

Montreal Bar Association Prize, 2017