About
Brooke K. Undeberg is an attorney with Stevens, Edwards, Hallock & Undeberg, P.C. in Gillette, Wyoming. Her primary practice areas include estate planning, probate, adoption, guardianship and conservatorship, real estate, business associations, and forcible entry detainer matters. She helps clients address legal decisions involving families, property, and business interests, drawing on experience in both public service and private practice.
Undeberg earned a J.D. from the University of South Dakota School of Law and a Master of Public Administration from the University of South Dakota in 2005. She received a B.A. in Criminal Justice from the University of Wyoming in 2002 and an A.A. in Interdisciplinary Studies from Eastern Wyoming College in 2000. This combination of legal and public administration studies informs her approach to planning and procedural matters.
Before joining the firm as an associate in 2018, Undeberg served for twelve years as a Deputy County and Prosecuting Attorney for Campbell County, Wyoming. Earlier, she worked as a prosecutor in Meade and Lawrence Counties in South Dakota. That public-sector background gave her experience with legal processes and advocacy before she entered private practice. Her current work covers planning and administration matters as well as disputes involving property and possession.
Undeberg has been admitted to practice in Wyoming since 2007 and South Dakota since 2005, and she was licensed in the U.S. District Court for the District of South Dakota in 2006. Her firm’s profile lists membership in the Wyoming and South Dakota bar associations. Brooke K. Undeberg brings prosecutorial experience and a broad educational background to clients seeking guidance on personal, property, and business matters.
Law Office Affiliations
- Attorney, Stevens, Edwards, Hallock & Undeberg, P.C.
- Member, Wyoming State Bar
- Member, State Bar of South Dakota
- 8th Circuit Governor, American Bar Association – Law Student Division (2004-2005)
Licensed State
- Wyoming
- South Dakota
Education
- University of South Dakota School of Law
Juris Doctor (JD) - University of South Dakota
Master of Public Administration - University of Wyoming
Bachelor of Arts (BA) in Criminal Justice - Eastern Wyoming College
A.A. in Interdisciplinary Studies
Awards & Badges


- Power of Attorney
- Probate
- Trusts
- Wills & Living Wills
- Adoption
- Guardianship




