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J.M. Madeleine Donahue

Madeleine is head of environmental practice in Macleod Dixon’s Toronto office where she practices primarily in the environmental, occupational health and safety, privacy and natural resources law areas. Madeleine is certified as an expert in environmental law by the Law Society of Upper Canada and is recognized as a leading and repeatedly recommended environmental expert by LEXPERT and is listed in Euromoney Institutional Investor's Guide to the World's Leading Environmental Lawyers.  She holds a Martindale Hubbell BV Peer Review rating.

Madeleine's environmental practice encompasses three broad categories: transactional due diligence, litigation and defence, and regulatory guidance.  Specific experience includes:  opinions and advice on environmental and OHSA liability and risk, strategic advice on compliance and due diligence, audits, approval and permit requirements, environmental assessment of projects, mining and energy related environmental issues, lender liability, spills, environmental site assessments and remediation, decommissioning and brownfields redevelopment, underground and aboveground tanks, air and water pollution, contaminated lands, toxic and hazardous substances, waste management, environmental insurance, TDGA as well as Fisheries Act and CEPA and CEAA matters. Madeleine has extensive experience in environmental and OHSA issues arising in the corporate, commercial, real estate and financing contexts. She also defends clients in the event of government prosecutions and clean-up orders and acts on private party contaminated site dispute matters and common law causes of action in respect of contamination.

In the area of natural resources, Madeleine was counsel to a mining joint venture which concluded the Musselwhite Agreement among the Ontario and federal governments and First Nation Groups. She has experience with aboriginal impact benefit agreements particularly in the mining and forest resources context. Madeleine also works on international environmental and mining matters.

Madeleine also provides advice on privacy and access to information legislation across Canada and on management practices and policies.  She has a particular interest in health/health informatics, electronic health records and telemedicine.






Madeleine has published numerous articles and papers and spoken extensively at conferences. Selected recent publications and conferences include: