PORTLAND — Dentons Bingham Greenebaum announced that Hannah King has joined the firm as a partner in its Cannabis Law, Litigation and Corporate practice groups. King, who is based in Portland, is one of Maine’s leading authorities on the highly regulated and complicated cannabis industry. She brings extensive experience advising hundreds of cannabis businesses to her practice at Dentons. King’s growing national practice includes advising hundreds of cannabis clients from small family-run businesses to large publicly traded, multi-state operators in Maine, Massachusetts, New Hampshire and Vermont.