Charles practises all aspects of environmental law and also specializes in mining law. He is based in both Montréal and Toronto. Charles advises mining companies in day-to-day legal matters related to their operations and commercial transactions, including earn-in, joint venture, royalty and off-take agreements, mine acquisitions and divestitures, mine reclamation and closure issues and mineral rights concerns, as well as in respect of indigenous matters. Charles has extensive expertise in environmental aspects of corporate, commercial and property transactions, project development, regulatory compliance and liability issues. He advises businesses with regard to contaminated property, remediation and redevelopment, environmental permits, investigations and enforcement under environmental legislation, environmental assessments, waste management issues, environmental management systems, environmental audits, regulatory and legislative compliance, officer/director/parent company liability, and defending environmental prosecutions. He has also been involved in negotiating agreements with First Nations. He is recognized as a leading lawyer in all major legal directories and ranking publications.