2825 3rd Avenue North
Suite 100
Billings, MT 59101-1949

Practice Areas

General Civil Practice
School Law
Health Care Law
Labor & Employment
Insurance and Insurance Defense
Real Estate
Civil Trials

Mary E. Duncan

Mary E. (“Marilee”) Duncan’s practice includes school law, civil litigation, employment law, insurance defense, and health care law. Marilee is a Billings, Montana native and earned her J.D. from the University of Montana in 1987 where she was named Outstanding Law Student and received the American Judicature Society Service Award. She clerked for the Thirteenth Judicial District Court and is a member of the local, state and American bar associations and practices in the Montana state and federal District Courts and the 9th Circuit Court of Appeals. She is a member of the Ethics Committee and the School Law Section of the State Bar of Montana, the Montana Defense Trial Lawyers Association, the National Council of School Attorneys, Montana Association of School District Attorneys, and the ABA Sections on Tort Trial and Insurance, Employment and Labor Law, Government Law, Health Law, School Law, and Litigation. Marilee is an adjunct professor at Rocky Mountain College, teaching School Law in the Master’s in Education Leadership Program.


Practice Areas Civil Practice;  Education Law; Labor and Employment; Civil Rights Defense; Litigation; Insurance Defense; Administrative Law; Health Care
Peer Review Rating AV Rated
Education University of Montana, J.D., 1987, University of Wyoming, B.A., 1983
Admitted 1987, Montana and U.S. District Court, District of Montana
Memberships Yellowstone County and American Bar Association (Member, Sections on:  State and Local Government Law; Tort Trial and Insurance; Employment & Labor Law; Health Law Litigation; Litigation) Bar Associations; State Bar of Montana (Member, Ethics Committee); Montana Defense Trial Lawyers Association
Born Billings, Montana, June 7, 1961
Biography Recipient: American Judicature Society Service Award, 1987; Outstanding Law Student Award. Law Clerk Thirteenth Judicial District Court, State of Montana