Anna Williams (formerly Bidegaray) is a third generation Montana lawyer. She has practiced law for over 23 years. Anna attended Wellesley College, Johannes Gutenberg University in Germany, and University of Washington. In 1994, she graduated from the University of Montana School of Law with honors. In law school, Anna was a member of the National Moot Court team and the Order of Barristers. Anna practiced law as a partner/owner in Bidegaray Law Firm, LLP for nearly 20 years. She later practiced at Tarlow Stonecipher Weamer and Kelly, PLLC for 4 years. In 2017, Anna opened her own practice, Anna Williams Law, PLLC.
Anna volunteers at Eagle Mount in the Therapeutic Horsemanship Program. She serves on the board of directors of Haven, the domestic abuse victim support group in her community. She also volunteers as a pro bono attorney at the Gallatin Legal Assistance Clinic and as a mediator at Project Settle.