Mr. Costello has handled a myriad of Criminal and Civil cases in City, State, and Federal courts as well as representing clients in front of the NYC Department of Investigation, various Federal and City Agencies. Most recently Mr. Costello represented Rudy Giuliani and Steve Bannon in DOJ investigations and before the House January 6th Committee hearings.
Prior to joining the firm he was a Partner at Levy Tolman & Costello, LLP, and the former Deputy Chief of the Criminal Division for the US Attorney’s Office in the Southern District of New York. Mr. Costello has represented such luminaries as George Steinbrenner, Leona Helmsley, Gene Michael, the General Manager of the Yankees and Michele Sindona, known as the “Vatican Banker.”
Mr. Costello’s cases have been covered in:
- “Steinbrenner” by Bill Madden
- “Lords of the Realm” by John Helyar
- “Power on Earth” by Nick Tosches
- “Money Players” by Armen Keteyian, Harvey Araton and Martin F. Dardis
- “American Injustice: My Battle to Expose the Truth” by John Paul Mac Isaac
In addition, Mr. Costello has litigated investigation matters with Major League Baseball, the National Basketball Association and has successfully represented more than one hundred former federal agents then working as drug program agents for the National Football League in an employment dispute with the League. Mr. Costello is a member of the American Bar Association, the Association of the Bar of the City of New York, and the Federal Bar Council.
Recognized and rated by Super Lawyers in 2011, 2012, 2014, 2020, 2021, 2022