Expertise
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Practice Areas:
- Bar Admissions:
- Education:
- University of Toronto (2015) JD
- University of Toronto – Trinity College (2012) HBA (Political Science, Canadian Studies and History with High Distinction).
Details
- Bio
- Cases
- Associations
- Blog Posts
- News & Media
- Publications & Presentations
- Recognition
Aoife Quinn (she/her)
is a partner at Lenczner Slaght.
"Aoife is a top-notch and skilled lawyer." — Chambers Canada
Aoife's practice encompasses a broad range of civil litigation, with particular experience in employment disputes, insurance disputes, and complex real estate litigation.
Aoife has represented clients before all levels of Court in Ontario, the Federal Court of Canada, the Ontario Land Tribunal, and other Ontario tribunals. Aoife has also appeared in the Manitoba Court of Appeal, the Manitoba Court of King’s Bench, and the British Columbia Supreme Court.
Aoife is the co-chair of the firm’s Pro Bono Committee and volunteers with Pro Bono Ontario’s Legal Advice Hotline. She is a mentor at the firm and through other organizations to students and first-generation lawyers.
Aoife obtained her law degree from the University of Toronto and completed a semester abroad at the University of Birmingham (UK).
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Counsel to the successful respondent in an appeal of a small claims court decision involving a payment dispute and the interpretation of a contract.
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Prairie Risk Management Inc v Marsh Canada Ltd
Counsel to Marsh Canada Ltd in an action in Manitoba alleging breach of contract, breach of confidence and breach of fiduciary duty in which we were successful on appeal in obtaining a significant reduction in the damages award and dismissing the finding of a breach of fiduciary duty.
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Rabinowitz v 2528061 Ontario Inc
Counsel to the successful defendant in resisting a motion to reconsider a previous decision dismissing the plaintiff’s action seeking specific performance of an agreement of purchase and sale, which was upheld on appeal.
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Giacomodonato v PearTree Securities Inc
Counsel to PearTree Securities Inc. in a wrongful dismissal trial and successful appeal involving novel issues regarding employment agreements.
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Counsel to the plaintiffs in successfully bringing a motion for summary judgment, finding a valid and enforceable agreement of purchase and sale, and awarding specific performance, which was upheld on appeal.
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Abid Chaudry v Bank of Montreal
Counsel to the Bank of Montreal in defending a wrongful dismissal claim brought by a senior managerial employee. Successfully resisted several motions and subsequent appeals brought by the Plaintiff, including a motion to amend the Statement of Claim and a motion to compel answers to refusals.
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Ratz-Cheung v BMO Nesbitt Burns Inc
Counsel to the defendants, Bank of Montreal, in defending an action by a former employee in a matter involving damages for breach of contract and wrongful dismissal.
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The Rosseau Group Inc v 2528061 Ontario Inc
Counsel to the defendant in an appeal from a trial decision following a failure to close on an agreement of purchase and sale where the trial judge awarded the prospective purchaser $11 million as a “reasonable estimate” of its “lost expected profit”.
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StorageVault Canada Inc v NYX Capital Corp
Counsel to Montcrest Asset Management (formerly NYX Capital Corp.) in a matter seeking specific performance of an alleged agreement of purchase and sale for seven self-storage properties with a purchase price of $240 million. We were successful in resisting a certificate of pending litigation over the seven properties.
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Municipality of Central Huron v Fluidyne
Counsel to the Municipality of Central Huron in a claim against a product distributor regarding allegations of misrepresentation, breach of contract, and negligence in respect of the replacement of a sewage treatment facility in a small municipality.
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The Advocates’ Society - Co-Chair of the Labour & Employment Practice Group (2026-2027); Member-at-Large of the Labour & Employment Practice Group (2024-2026)
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Canadian Bar Association - Member-at-Large, Insurance Law Executive (2026-2027)
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Ontario Bar Association
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Canadian Association of Counsel to Employers
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Pro Bono Ontario
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Key Development in Tort Law: Supreme Court of Canada Establishes New Framework for Novel Torts
On May 15, 2026, the Supreme Court of Canada rendered its decision in Ahluwalia v Ahluwalia, a highly anticipated decision in tort law. The majority of the Court allowed the appeal of the decision of the Court of Appeal for Ontario and outlined a consolidated framework for recognizing new torts. Though the decision deals specifically with the recognition of a tort of intimate partner violence, the framework applies to all courts seeking whether to recognize a new tort in any context. Any party litigating a tort claim in Canada should understand its implications.
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Strict Requirements for Employers’ Overtime Policies in New Employment Law Class Action Decision
Is an employer obligated to pay overtime if they don’t specifically direct an employee to work overtime? And can an employer’s requirement that employees obtain pre-approval for any overtime they work shield them from the obligation to pay overtime if pre-approval isn’t obtained? These are important issues for any employer.
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Chambers Canada Highlights Lenczner Slaght as a Litigation Powerhouse
With 28 ranked lawyers and top-tier practice group rankings across 11 areas, Lenczner Slaght’s latest Chambers Canada results continue to reinforce that its reputation as Canada’s leading litigation firm is built on decades of courtroom excellence, national reach, and top-tier client service.
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49 Lenczner Slaght Litigators Named in Best Lawyers in Canada 2027
In the 2027 edition of Best Lawyers in Canada, 49 of our expert litigators earned 172 rankings across 26 practice areas, a testament to the depth and breadth of our advocacy.
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7 Lenczner Slaght Litigators Elected to Leadership Positions in The Advocates’ Society
As recognized leaders of the bar, our expert litigators will play an active role in advancing the mission of The Advocates' Society, helping to shape professional development through educational programs, networking events, volunteer initiatives, mentorship opportunities, and more.
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Lenczner Slaght Celebrates 25 Years on the Lexpert Bull’s-Eye
The 2026 Canadian Legal Lexpert Directory continues to recognize Lenczner Slaght as the #1 firm in Toronto for Litigation and Commercial Litigation.
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Lenczner Slaght Recognized in Legal 500 Canada for Litigation Excellence
As Canada’s leading litigation firm, we are proud to maintain our Tier 1 ranking in Dispute Resolution in Legal 500 Canada.
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Lenczner Slaght Recognized as Canada’s Leading Litigators
Based on an in-depth peer review process across the legal profession, 26 Lenczner Slaght lawyers are recognized in the 2025 Lexpert Special Edition: Canada’s Leading Litigation Lawyers for their exceptional advocacy and extensive courtroom experience.
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Chambers Canada Highlights Lenczner Slaght’s Excellence in Advocacy
Canada’s leading litigation firm continues to be recognized in world-renowned directory, with new rankings highlighting its deep bench of expertise.
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Lenczner Slaght Litigators Featured Among Best Lawyers in Canada
The 2026 edition of Best Lawyers in Canada recognizes Lenczner Slaght with 180+ rankings, featuring 48 of our expert litigators across 27 practice areas.
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7 Lenczner Slaght Litigators Appointed to Leadership Roles in The Advocates’ Society
As recognized leaders of the bar, our lawyers will help advance the mission of Canada’s leading organization for litigators – fostering a national, collegial community of advocates committed to excellence inside and outside the courtroom.
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2025 Lexpert Directory Highlights Lenczner Slaght’s Excellence in Advocacy
Peers and senior members of the legal profession across the country continue to recognize the depth and breadth of Canada’s leading litigation firm in the latest 2025 Canadian Legal Lexpert Directory.
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10th National Pro Bono Conference
Rebecca Jones and Aoife Quinn were invited to share their expertise at the 10th National Pro Bono Conference.
Rebecca Jones will lead the panel Individual Service to Systemic Advocacy, discussing how individual legal service can reveal systemic issues and point to broader change, including examples from consumer law, class actions, government accountability, and public interest advocacy, and discussing how individual cases can point to larger reforms.
Aoife Quinn will speak on the panel Purpose in Practice: Leadership, Legacy, and the Power of Pro Bono, exploring leadership lessons for closing the access-to-justice gap. She will reflect on her personal journey, the evolving role of the legal profession in addressing unmet legal needs, the importance of pro bono service, and the lasting impact of purpose-driven volunteering.
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Aoife Quinn was invited to share her expertise at The Advocates’ Society’s annual program on Evidence for Litigators. Aoife presented on the panel Evidence Update 2026: What Every Trial Lawyer Needs to Know, delivering an update on recent case law and legislative changes.
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Exploring Litigation & Transactional Pathways
Aoife Quinn and Jennah Khaled spoke at the University of Toronto's event titled, Exploring Litigation & Transactional Pathways. They shared valuable insights on the key differences between careers in litigation and transactional law.
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Aoife Quinn, Jonathan McDaniel, Herschel Chaiet, and Cat Blair appeared as judges at the University of Toronto, Faculty of Law's Hamish Stewart Cup, a criminal-constitutional moot for first-year students.
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2025 Snapshot: Through the Lens of Lenczner Slaght
We’ve released our 2025 Snapshot, highlighting the most significant developments, decisions, and trends in litigation from the past year across 21 practice areas. Reflect on 2025 and look ahead to 2026 through the lens of our expert litigators.
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2024 Snapshot: Through the Lens of Lenczner Slaght
Lenczner Slaght launches our 2024 Snapshot, which highlights the most significant developments, decisions, and trends in litigation from the past year across 20 areas of expertise. Reflect on 2024 and look ahead to 2025 through the lens of our expert litigators.
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2023 Snapshot: Through the Lens of Lenczner Slaght
Lenczner Slaght launches our 2023 Snapshot, a look at the most significant developments, decisions, business takeaways, and trends in litigation from the last year, across 15 practice areas. Revisit 2023 and look ahead to 2024 through the lens of our expert litigators.
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The Presumption of Resulting Trust and Beneficiary Designations: What's Intention Got to Do with It?
Aoife Quinn co-wrote the paper “Presumption of Resulting Trust and Beneficiary Designations: What's Intention Got to Do with It?” for the Alberta Law Review on May 17, 2016.
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Best Lawyers in Canada (2023-2026)
Class Action Litigation, Corporate & Commercial Litigation, Health Care Law, Labour & Employment Law, Medical Negligence, Securities Law
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Best Lawyers in Canada (2027)
Medical Negligence
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Canadian Legal Lexpert® Directory (2024-2026)
Litigation - Corporate Commercial
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Chambers Canada (2026-2027)
Employment & Labour (Ontario); Insurance: Dispute Resolution (Nationwide – Canada)
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Lexpert Special Edition: Canada's Leading Litigation Lawyers (2025)
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The Legal 500 Canada (2022-2023)
Labour and Employment (Recommended Lawyer)
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The Legal 500 Canada (2026)
Insurance: Dispute Resolution (Next Generation Partner)