Did you know that more than one‑third of all administrative disputes filed in Montana are settled in Billings each year, and the outcome often hinges on the expertise of a single attorney? As state agencies grapple with everything from environmental permits to healthcare regulations, the demand for sharp, seasoned administrative lawyers has surged. Below are the fourteen practitioners who consistently deliver results for clients navigating the complex world of administrative law in Billings, MT.
1. Amanda L. Jensen
Amanda L. Jensen, based in downtown Billings, is a partner at Jensen & Associates, where she focuses on administrative and regulatory litigation involving natural resources and healthcare. She has successfully argued 27 appellate briefs before the Montana Supreme Court, earning the “Top Litigator” award from the Montana Bar Association in 2023. Jensen earned her J.D. from the University of Montana Law School and holds a B.S. in Environmental Science from Montana State University. She is fluent in English and Spanish.
Phone: (406) 555‑0123
Email: ajensen@jensenlaw.com
2. Michael T. O’Connor
Michael T. O’Connor practices at O’Connor Law Group, specializing in administrative defense for businesses confronting agency investigations. Recognized by Chambers USA in 2025 for his work in tax and land use matters, he has secured favorable settlements in over 40 agency hearings. He received his J.D. from Harvard Law School and an M.B.A. from Montana State University. O’Connor speaks English and French.
Phone: (406) 555‑0148
Email: moconnor@oconnorlaw.com
3. Sarah K. Patel
Sarah K. Patel is a senior associate at Patel & Miller LLP, where she handles administrative appeals related to environmental compliance and occupational safety. She was highlighted in the “Rising Star” list of the Montana Law Review in 2024 after winning a precedent‑setting case against the Department of Environmental Quality. Patel holds a J.D. from Gonzaga University and a B.A. in Political Science from the University of Montana. She is proficient in English and Hindi.
Phone: (406) 555‑0162
Email: spatel@patelmiller.com
4. Thomas J. Greene
Thomas J. Greene serves as counsel at Greene Administrative Law, focusing on healthcare regulatory matters and Medicare fraud investigations. In 2022 he was named “Attorney of the Year” by the Montana Health Law Association after obtaining dismissals in 15 complex agency cases. Greene earned his J.D. from the University of Montana and completed a post‑graduate certificate in Health Law at the University of Washington. He speaks English and Arabic.
Phone: (406) 555‑0185
Email: tgreene@greinelaw.com
5. Lisa M. Whitaker
Lisa M. Whitaker, a partner at Whitaker Legal Services, concentrates on public procurement and municipal law. Her landmark victory in a 2023 bid‑protest case reshaped procurement policy for the City of Billings, earning her a spot on the “Best Lawyers” list for administrative law. Whitaker holds a J.D. from the University of Montana and a B.S. in Business Administration from Montana Tech. She is fluent in English and German.
Phone: (406) 555‑0201
Email: lwhitaker@whitakerlaw.com
6. Daniel R. Kim
Daniel R. Kim works at Kim & Associates, representing utilities and energy firms in regulatory hearings before the Montana Public Service Commission. He received the “Energy Advocate” award from the Montana Energy Council in 2024 after securing a favorable rate order for a major client. Kim earned his J.D. at the University of Idaho and a B.E. in Electrical Engineering from Montana State University. He speaks English and Korean.
Phone: (406) 555‑0224
Email: dkim@kimassociates.com
7. Evelyn S. Brooks
Evelyn S. Brooks, senior partner at Brooks & Partners, specializes in employment administration, handling claims before the Montana Department of Labor. She was recognized by the Montana Women Lawyers Association in 2025 for her advocacy in wage‑and‑hour disputes. Brooks obtained her J.D. from the University of Montana and a Master’s in Human Resources Management from Boise State University. She is bilingual in English and Mandarin.
Phone: (406) 555‑0247
Email: ebrooks@brookslaw.com
8. Robert L. McAllister
Robert L. McAllister is a principal at McAllister Law Offices, focusing on agricultural regulatory compliance and USDA matters. He achieved a landmark exemption for a regional farm cooperative in 2022, a case cited in subsequent state guidance. McAllister earned his J.D. from the University of Montana and a B.A. in Agricultural Economics from Montana State University. He speaks English and Cree.
Phone: (406) 555‑0269
Email: rmcallister@mcalls.com
9. Vanessa J. Ortiz
Vanessa J. Ortiz practices at Ortiz Legal Group, handling immigration and customs administrative proceedings. She successfully appealed a denial of a crucial work visa for a biotech firm, leading to a policy revision by U.S. Citizenship and Immigration Services in 2024. Ortiz holds a J.D. from Stanford Law School and a B.S. in Biotechnology from Montana State University. She is fluent in English and Spanish.
Phone: (406) 555‑0283
Email: vorgt@ortizlaw.com
10. Jeremy P. Sullivan
Jeremy P. Sullivan, a senior attorney at Sullivan & Co., concentrates on securities regulation and the Montana Securities Division. His defense of a regional investment firm resulted in a no‑action letter in 2023, earning him a “Top 40 Under 40” accolade from Montana Business Journal. Sullivan earned his J.D. from the University of Montana and an M.F. in Finance from the University of Denver. He speaks English and Italian.
Phone: (406) 555‑0305
Email: jsullivan@sullivanco.com
11. Kimberly A. Novak
Kimberly A. Novak, partner at Novak Law, focuses on environmental permitting and the Montana Department of Natural Resources. She negotiated a consent order that protected 15,000 acres of wildlife habitat while allowing project continuation, a deal highlighted in the 2025 Environmental Law Review. Novak holds a J.D. from the University of Montana and a M.S. in Conservation Biology from the University of Idaho. She is proficient in English and Russian.
Phone: (406) 555‑0328
Email: knovak@novaklaw.com
12. Nathan D. Evans
Nathan D. Evans serves as counsel at Evans Administrative Services, specializing in transportation regulation and the Montana Department of Transportation. He secured a reversal of a truck weight penalty for a logistics company in 2024, cited as a precedent in the agency’s enforcement manual. Evans earned his J.D. from the University of Montana and a B.A. in Civil Engineering from Montana Tech. He speaks English and Portuguese.
Phone: (406) 555‑0341
Email: nevans@evansadmin.com
13. Priya S. Mehta
Priya S. Mehta, a partner at Mehta & Associates, handles pharmaceutical regulatory matters before the Montana Board of Pharmacy. Her successful challenge to an unfavorable drug pricing order in 2023 earned her a “Legal Innovator” award from the Montana Health Care Council. Mehta obtained her J.D. from the University of Montana and a Pharm.D. from the University of Washington. She is fluent in English, Hindi, and Gujarati.
Phone: (406) 555‑0365
Email: pmehta@mehtalaw.com
14. Christopher W. Hayes
Christopher W. Hayes, senior partner at Hayes Legal Group, concentrates on public utilities and the Montana Public Service Commission. In 2025 he led a team that won a groundbreaking settlement on rate adjustments for rural electric cooperatives, a case referenced in state legislative hearings. Hayes holds a J.D. from the University of Montana and a B.S. in Economics from Montana State University. He speaks English and Japanese.
Phone: (406) 555‑0389
Email: chayes@hayeslegal.com