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This is a photo of Photo Erin 2022




Contact by email at [email protected]

t. +1 416-601-8215


Erin Chesney is an associate in our Litigation group in Toronto. She maintains a broad litigation practice with an emphasis on commercial litigation and professional liability. Her commercial litigation practice includes acting for financial institutions in contract and negligence disputes as well as helping commercial clients with freedom of information matters. Erin is also involved in medical defence work on behalf of the Canadian Medical Protective Association in civil, administrative and regulatory contexts.

Erin has appeared before all levels of court in Ontario, including the Ontario Superior Court of Justice, Ontario Court of Justice and Ontario Court of Appeal. She has also appeared before the Court of Queen's Bench of Alberta and the Court of Appeal of Alberta. She regularly appears at the Commercial List in Toronto on complex commercial disputes. She has also appeared before the Discipline Committee of the College of Physicians and Surgeons of Ontario, the Consent and Capacity Board and the Health Professions Review Appeal Board.

Erin has acted as defence counsel on criminal cases through McCarthy Tétrault’s pro bono criminal defence program, which is a partnership with the University of Toronto’s community legal clinic Downtown Legal Services. 

Recent cases in which Erin has acted as counsel include:

  • Successfully defended The Toronto-Dominion Bank in a $5.5 billion action arising from the collapse of Stanford International Bank (McDonald and Dickson v TD Bank, 2021 ONSC 3872).
  • Represented National Bank of Canada in securing an order for security for costs (JoBro Film Finance Ltd v National Bank of Canada, 2020 ONSC 975).
  • Obtained a summary judgment for a physician who was defamed on the internet, which was upheld by the Court of Appeal (Zoutman v Graham, 2020 ONCA 767).
  • Lead counsel representing a physician in successfully responding to an appeal of a consent and capacity board decision (Islam v Ulic, 2019 ONSC 5481).

Erin received her JD from the University of Windsor in 2016. While in law school, she was the executive editor of the Windsor Review of Legal and Social Issues and an active member of the competitive moot court program.

Erin obtained her Bachelor of Arts graduating summa cum laude from McMaster University with a major in Religious Studies. She received the Religious Studies Prize for highest cumulative average and the Lawrence and Kathleen Johnston Memorial Prize for Highest Sessional Average.

Erin was called to the Ontario bar in 2017. She is a member of the Law Society of Ontario, the Ontario Bar Association and The Advocates' Society.