During law school, Jean-Luc served as a legal intern for the Natural Resources Defense Council (NRDC) and as a legal extern for Region 5 of the United States Environmental Protection Agency (U.S. EPA).
After graduating from law school, Jean-Luc joined the Environmental Law & Policy Center (ELPC) as an associate attorney and later advanced to staff attorney. His work with ELPC encompassed appearances before state and federal trial and appellate courts, including the Michigan Court of Appeals and the U.S. District Court for the Northern District of Ohio, on matters concerning both energy and environmental law. Jean-Luc also provided counsel in retail energy matters before state public utility commissions, including the Illinois Commerce Commission, the Iowa Utilities Board, the Michigan Public Service Commission, the Public Utilities Commission of Ohio, and the Public Service Commission of Wisconsin.