Judge Antrim graduated from St. Mary of the Plains College in Dodge City, Kansas in 1982 with a degree in secondary education. After moving to the Denver metro area, she had a lengthy career in the real estate field. In 1989, she obtained a law degree from the University of Denver. She practiced with the law firm of Kissinger & Fellman, PC until she was appointed a magistrate in Jefferson County in 1996. In 2003, Governor Bill Owens appointed Judge Antrim to the district court bench in the Eighteenth Judicial District. Since that time, she has heard a docket of criminal, civil and domestic cases.
Judge Antrim has served on the board of directors of the First JD Bar Association and has held several offices in the District Judges Association including the office of president.