New York attorney · Reg. #4431946

Martin John Costello

Registered — renewal due (registry: Due to reregister within 30 days of birthday)

Current employer

Martin J. Costello · Minneapolis, MN · since at least September 2026

Admission

Admitted 2006, Third Department · UNIVERSITY OF MINNESOTA

Employment history

• Martin J. Costello · Minneapolis, MN · current

Compiled from NYS Office of Court Administration registration records and published NY Appellate Division decisions; current as of October 2026. Not an official record; verify with the NY Courts Attorney Search.