Mark A. Costello


Mark Costello is an associate in the litigation practice group at Colodny Fass where he focuses his practice on first-party property insurance defense, including coverage and bad faith litigation.  Mr. Costello assists insurers in all aspects of coverage disputes, including responses to civil remedy notices of insurer violations, pre-suit investigations and coverage evaluations, proactive declaratory judgment actions and bad faith litigation. 

Mr. Costello earned a Master of Law degree in Taxation from The University of Florida and a Master’s in Business Administration with a concentration in Finance from Nova Southeastern University.

He graduated law school from Nova Southeastern University where he was a leader in the Criminal Law Society and an active member in the Nova Trial Association. Mr. Costello was awarded the Pro Bono Honors Program Gold Award for extraordinary service to his community. He received his undergraduate degree from Arizona State University where he was a “walk-on” crew member for the Arizona State University Men’s Varsity Rowing Team.

While in law school, Mr. Costello was a judicial intern with the Broward County Foreclosure Division under Judge Joel Lazarus. He also clerked for Judge Kathryn S. Paek, a criminal trial court judge in New York County, New York, where he analyzed legal issues and drafted judicial opinions. He further served as a legal intern with the Broward County State Attorney’s Office, where he assisted prosecutors and detectives in the investigation of career criminals.

Prior to joining Colodny Fass, Mr. Costello had extensive experience working as in-house counsel for a statewide insurance carrier prosecuting subrogation claims.

Mr. Costello is admitted to the Florida and will soon be admitted to the New York bar.