Katherine Antonson

Katherine Antonson is an attorney with Parker, Heitz & Cosgrove, PLLC, in Billings, Montana. Her practice covers general civil litigation and criminal litigation, giving her experience with legal matters that require case preparation and courtroom advocacy. She represents clients in disputes and proceedings under Montana law and brings a broad litigation focus to the firm’s work on contested matters.

Katherine earned a B.A. in Psychology, cum laude, from the University of North Dakota in 2016. She then received her J.D., cum laude, from the University of North Dakota School of Law in 2018, graduating with Order of the Coif honors. Her education provided training in legal analysis, research, and the careful evaluation of facts that supports civil and criminal casework.

Katherine relocated to Billings in 2020 and developed a litigation practice involving civil and criminal matters. She is admitted to practice in Montana and before the U.S. District Court for the District of Montana. Her work encompasses cases that may involve different procedural demands, requiring close attention to legal arguments, applicable rules, client objectives, and available litigation options.

Katherine’s academic distinctions reflect her performance in both undergraduate and legal studies. Her practice at Parker, Heitz & Cosgrove focuses on helping clients address disputes through the legal process, whether in civil proceedings or criminal cases. Katherine Antonson combines formal litigation training with Montana court admissions to assist clients facing matters that call for preparation, legal research, and advocacy.

Law Office Affiliations

• Attorney, Parker, Heitz & Cosgrove, PLLC
• Member, State Bar of Montana

Licensed State

• Montana

Education

• University of North Dakota School of Law
  Juris Doctor (JD) (Cum Laude)
• University of North Dakota
  Bachelor of Arts (BA) (Cum Laude)

Awards & Badges