Rudy Giuliani's ex-lawyer has filed a lawsuit seeking nearly $1.4 million in unpaid bills.
Costello and Giuliani's advisor Ted Goodman didn't immediately respond to requests for comment on Monday evening.
One of Trump's PAC has also paid $340,000 to a legal records firm that Giuliani owed money to, records show.
In July, a panel of the DC Bar recommended that Giuliani's law license be revoked.
Giuliani isn't the only Trump ally to fail to pay legal fees to Costello.
Persons:
Rudy Giuliani's, Giuliani, Donald Trump, Rudy Giuliani, Davidoff Hutcher, Citron, Robert Costello, Costello, Jack Smith's, Fani Willis, . Costello, Ted Goodman didn't, Eduardo Munoz Rudy Giuliani's, Trump, it's, Steve Bannon
Organizations:
Service, US, Office, of, New York City, New York Law, REUTERS, CNN, Trump's PAC, DC
Locations:
Wall, Silicon, Manhattan, Georgia, Southern, of New York, Bedminster , New Jersey, New York, Mexico