LAWYER PROFILE
Jennifer Fairfax

Jennifer Fairfax

Global 2026

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Ranked in 1 practice area

About

Provided by Osler, Hoskin & Harcourt LLP

Practice Areas

Jennifer Fairfax provides business-critical environmental and regulatory advice, with a specialty in environmental law and litigation. Jennifer also practices commercial and construction litigation and dispute resolution.

Jennifer has significant experience conducting negotiations with, and making representations to, regulatory bodies, including the Ontario Ministry of the Environment, assisting clients with inspections, investigations and reporting obligations, as well as conducting environmental litigation, including civil actions/applications, judicial reviews, administrative tribunal proceedings, and defence of prosecutions.

Jennifer also provides regulatory and environmental advice relating to environmental assessments, regulatory orders, corporate transactions, permits and approvals, waste and soil, contaminated lands, renewable energy projects, and regulatory compliance.

Jennifer litigates business-critical issues in environmental law, construction disputes, complex contractual / negligence disputes, insurance disputes, commercial arbitrations, and constitutional law. She has broad advocacy and trial experience and has appeared before the Ontario Superior Court of Justice, the Ontario Divisional Court, the Ontario Court of Appeal, the Federal Court of Canada, the Federal Court of Appeal, and the Ontario Environmental Review Tribunal. Jennifer has also acted as lead appellate counsel in constitutional litigation. Jennifer is the past Chair of the executive of the OBA Environmental Law Section. Prior to joining Osler, Jennifer clerked for The Honourable Justice Edgar Sexton with the Federal Court of Appeal.

Career

Osgoode Hall Law School, LL.B.

Queen's University, B.A. (Hons.)

Bar Admission: Ontario, 2003

Professional Memberships

Canadian Bar Association

Ontario Bar Association: past Chair, Environmental Law Section Executive

Law Society of Ontario

Advocates Society

York University, Osgoode Written Advocacy Workshop

York University, Osgoode Intensive Trial Advocacy Workshop

Chambers Review

Provided by Chambers

Chambers Global Guide

Environment - Canada

Band 2
Band 2

Individual Editorial

Toronto-based Jennifer Fairfax is active in environmental assessments as well as remediation and contamination matters. Her practice additionally covers the environmental aspects of corporate transactions and regulatory compliance. She acts on behalf of a range of national and international clients, often in the energy and infrastructure sectors.

Strengths

Provided by Chambers

  • Jennifer is timely and an expert in her field.

    EnvironmentChambers Global Guide
  • Jennifer is extremely knowledgeable and has significant experience dealing with regulators in various circumstances. Her advice is practical and collaborative.

    EnvironmentChambers Global Guide
  • Jennifer's pragmatic approach to litigation seeks to find the most efficient manner to settle the matter for the client. She has an excellent grasp of her client's appetite for risk.

    EnvironmentChambers Global Guide

Ranked Individuals at Osler, Hoskin & Harcourt LLP (83)

Canada

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