Expertise
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Practice Areas:
- Bar Admissions:
- Education:
- University of Western Ontario (2017) JD (Distinction)
- York University (2014) MA
- University of Western Ontario (2013) BA (Honours)
Details
- Bio
- Cases
- Associations
- Blog Posts
- News & Media
- Publications & Presentations
Sean Lewis (he/him)
is a lawyer at Lenczner Slaght.
Sean’s practice encompasses a broad range of litigation areas, including corporate-commercial, securities, employment, public and administrative law, and professional liability. Sean has appeared before several levels of court, including the Ontario Superior Court of Justice, the Ontario Court of Appeal, and the Supreme Court of Canada, as well as multiple statutory tribunals.
Prior to being called to the Bar, Sean summered and articled at the firm, gaining experience working on complex commercial and professional liability matters.
Sean graduated with distinction from Western Law, where he was awarded the Dean Ivan C. Rand Award for academic standing and contributions in the service of students, and the Law Society of Upper Canada Prize for academic excellence. Sean was also the co-chair of the Western Law Advocacy Committee, winner of the 2015 Ontario Trial Lawyers Association Moot, the Top Oralist at the 2016 Phillip C. Jessup International Moot Court Competition, and the coach of Western Law’s 2017 Jessup Cup team. In addition to mooting, Sean was the Editor-in-Chief of the Western Journal of Legal Studies.
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Counsel to the successful Defendant Physician in a trial for alleged negligence for failing to diagnose and treat an ankle fracture.
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Counsel to a re-insurance company respondent in an international, multi-party coverage and allocation dispute.
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Loblaw Companies Limited et al v Royal & Sun Alliance Insurance Company of Canada et al
Counsel to AIG in a duty to defend and coverage application related to opiate class proceedings.
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Bakaris v Southern Sun Pharma Inc et al
Counsel to the respondent corporation and director in a breach of contract application related to the acquisition of a license to grow and sell cannabis in Zimbabwe. Successfully stayed the matter in favour of arbitration.
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Armstrong v Royal Victoria Hospital
Appealed successfully on behalf of the defendant physician in a case of alleged negligence relating to a ureteric injury during a colectomy.
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Aecon Mining Construction Services v K+S Potash Canada GP
Counsel to Aecon in complex litigation involving multiple parties and claims, in respect of the Legacy potash mine and production facility in Saskatchewan.
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Polymath Studios Inc v 2362828 Ontario Inc et al
Counsel to the plaintiff corporation in a fraudulent misappropriation case against a former employee. The proceedings were resolved by way of settlement.
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Intervened at the Supreme Court of Canada on behalf of the Canadian Civil Liberties Association on a case concerning sections 8 and 9 of the Charter of Rights and Freedoms.
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Successfully enforced an agreement to dismiss the matter on behalf of the defendant physicians.
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In the Matter of Benedict Cheng et al
Counsel to the respondent in Ontario Securities Commission proceedings alleging tipping in an insider trading matter. The proceedings were resolved by way of settlement.
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Advocates' Society
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Canadian Bar Association
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Ontario Bar Association
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The SCC Leave Project: Predictions for May 13, 2021
Here’s a look at the leave application decisions that the Supreme Court of Canada will be releasing on May 13, 2021.
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In its February 28, 2020 decision, Nevsun Resources Ltd v Araya, the Supreme Court of Canada allowed a claim by three Eritrean citizens against a British Columbia corporation operating in Eritrea to proceed. Canadian (and international) corporations with international operations in high risk jurisdictions should take note.
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Enforcing Arbitral Awards on the Commercial List
Lawrence E. Thacker and Sean Lewis co-authored the article Enforcing Arbitral Awards on the Commercial List, which was published on commerciallist.com.
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Still much to be determined on insurance coverage after cyberattacks
Sean Lewis is quoted in the Law times article "Still much to be determined on insurance coverage after cyberattacks" on August 12, 2019. This article discusses case law related to cybersecurity insurance coverage.
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Lenczner Slaght Welcomes Five New Associates
Canada’s leading litigation firm continues to add to its collective experience and knowledge with the addition of five talented associates.
Lenczner Slaght is delighted to welcome Derek Knoke, Graham Henry, Jonathan D. Langley, Sean Lewis, and Zachary Rosen to the firm as our new associates.
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The Walker Health Law Moot 2021
Sean Lewis, Vinayak Mishra, and Adam H. Kanji served as judges at the 2021 Walker Health Law Moot.