LAWYER PROFILE

Jonathan W. Kahn

Canada 2026

Blake, Cassels & Graydon LLP

Ranked in 1 practice area

Environment

Nationwide - Canada

10 years ranked

About

Provided by Blake, Cassels & Graydon LLP

Canada

Practice Areas

Jonathan is widely regarded as one of Canada's leading environmental lawyers and Chaired Blakes’ national Environmental group for more than 10 years. He has, for more than 30 years, provided representation and advice on a broad range of environmental and natural resources law issues. Jonathan represents clients on the purchase, sale, and remediation of contaminated land, mining and energy regulation and permitting; management of natural resources; the transportation, chemicals management; handling and disposal of hazardous substances; environmental permitting; air, water and waste regulation; lender liability; ESG and sustainability and other environmental matters. He has represented corporations in significant environmental prosecutions, acted for proponents in major mining, renewable energy and infrastructure projects and provided environmental law advice on significant transactions.

Professional Memberships

Jonathan served as Chair of the American Bar Association's Section of Environment, Energy and Resources Law (the first non-American to serve on the Executive Committee) in 2022-23, and is also a former Chair of the Canadian Bar Association National Environment, Energy and Resources Law Section.

Chambers Review

Provided by Chambers

Chambers Canada Guide

Environment - Nationwide - Canada

Band 1

Individual Editorial

Pre-eminent environmental lawyer Jonathan Kahn advises on a broad spectrum of matters in the environmental space, including cross-border acquisitions and prosecutions and class actions relating to issues such as land contamination. He is based in Toronto.

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Strengths

Provided by Chambers

Jonathan has excellent judgment. He is also very responsive and always gets back to us very promptly.
EnvironmentChambers Canada Guide
Jonathan is very knowledgeable and helps us digest complicated topics and explain them to our business partners.
EnvironmentChambers Canada Guide
Mr. Kahn is very knowledgeable and understands our business very well. His significant experience allows him to take on difficult tasks and formulate a good strategy.
EnvironmentChambers Canada Guide