For 22 seasons from March 12, 2001 to July 21, 2023, Milian starred in the American courtroom television series The People's Court, replacing Jerry Sheindlin.

[4] She spent a year working at Harvard Law School, where she served as director of training for the Guatemala Project.

After ten years in that position, she then worked for the Miami County Court, serving in the domestic violence, criminal, and civil divisions.

[4] In 1999, Florida governor Jeb Bush appointed Milian to the Miami Circuit Court, where she served in the Criminal Division.

Milian has listed as an adjunct faculty member of the University of Miami School of Law, teaching litigation skills.

In contrast to The People's Court's previous arbiters, Milian is considerably more animated in her role,[8] but she's also known for being levelheaded and logical in her observations and handling of the cases.