Overview

Diana Weir is Counsel in BLG's Environmental Group in Toronto. She provides legal and strategic advice on environmental matters governed by Ontario, federal and municipal legislation. Her practice includes environmental permits and authorizations, regulatory compliance, contaminated sites, spill response, waste requirements and environmental due diligence in mergers and acquisitions. Diana also has substantial disputes experience. She defends clients facing environmental and regulatory charges, handles appeals of remediation orders and represents parties in contaminated-land and other environmental litigation before Ontario courts and the Ontario Land Tribunal. Her work has included advising companies on chemical compliance, producer-responsibility regimes and transaction-related environmental risks. Diana chairs the Environmental Law Section Executive Committee of the Ontario Bar Association, belongs to the Canadian Bar Association and serves on the steering committee of the Cambridge Forum on Environmental Law. She was admitted in Ontario in 2014 and holds a JD and an honours BA from Queen's University, along with an Osgoode certificate in ESG, climate risk and law.

Practice Areas

• Environmental Law
• Environmental Disputes
• Regulatory Compliance
• Environmental Litigation

Bar Information

Called to the bar: 2014 (ON)