Jacqueline T. Lenmark

Jacqueline T. Lenmark: Attorney with Keller Law Firm, P.C.


Jacqueline Lenmark was born in Seattle, Washington in 1945. She was raised in Southern California, graduating from Loma Linda University in 1967. After college Jackie obtained her M.A. in English from Andrews University in Michigan, and worked for a time as an in-house editor for an accounting firm in Chicago, Illinois. She returned to Southern California in 1970 where she worked for patent lawyers and first became interested in the practice of law. Jackie moved to Helena in 1975 where she began working with the Montana Legislative Council legal division. Upon graduation from the University of Montana School of Law with honors in 1985, she joined the firm where she has practiced law since.

While in law school Jackie served on the editorial board and was the editor-in-chief of the Montana Law Review. After entering private practice, Jackie resumed her association with the Montana legislature, this time as a member of the “fourth house” counting among her many government relations clients the American Insurance Association, American Council of Life Insurers, and the American Civil Liberties Union. Her law practice now emphasizes insurance litigation, real property and commercial transactions, and government relations. She also frequently serves as a mediator, primarily in domestic relations disputes. In 1993, the Montana Supreme Court appointed Jackie to the Montana Board of Bar Examiners for which she now serves as the Chair. She also has served on the University of Montana School of Law Board of Visitors since 2006. Jackie is admitted to practice before the Montana Supreme Court, the United States District Court for the District of Montana, and the Ninth Circuit Court of Appeals and is AV rated by Martindale-Hubbell.

An active supporter of the Helena arts community, Jackie has participated in and served on the boards of numerous Helena community organizations, including the Helena Symphony Chorale, Intermountain, Myrna Loy Center, St. Peter’s Hospital Foundation, and the Montana Club. She finds particular enjoyment in sailing, canoeing, gardening, and ongoing restoration of the historic building she calls home.

Areas of Practice (5)

  • Insurance Litigation
  • Insurance Regulation
  • Defense Litigation
  • State Legislative Practice
  • Civil Appeals

Education & Credentials

Contact Information:
406-442-0230  Phone
406-449-2256  Fax
Mailing Address:
P.O. Box 598, Helena, MT 59601
University Attended:
Loma Linda University, B.A., 1967; Andrews University, M.A., 1969
Law School Attended:
University of Montana, J.D., with honors, 1985
Year of First admission:
U.S. Court of Appeals, Ninth Circuit; U.S. District Court, District of Montana; 1985, Montana
First Judicial District (President, 1991-1992; Treasurer, 1995—2005) and American Bar Associations; State Bar of Montana
Birth Information:
Seattle, Washington, November 17, 1945
Payment Information:
  • Credit cards accepted
  • Accepts Visa and MasterCard
  • Fixed Hourly Rates
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