[2] Corrigan served as a law clerk to Judge Gerald B. Tjoflat of the United States Court of Appeals for the Eleventh Circuit from 1981 to 1982.

He was in private practice in Florida from 1982 to 1996, and served as an adjunct instructor at the Duke University School of Law from 1985 to 1996.

Corrigan served as a United States magistrate judge of the United States District Court for the Middle District of Florida from 1996 to 2002, and was an adjunct professor at the Florida Coastal School of Law in 1999.

A bullet fired by Aaron Richardson, a criminal defendant whom Corrigan had earlier sentenced, into Corrigan's home missed him by less than two inches, although he suffered superficial wounds from broken glass.

In June 2016, Richardson was sentenced to 343 years in prison for the attempt and related charges.