In a shocking move, Lindsay Lohan fired her long-time attorney Shawn Holley in favor of New York-based lawyer Mark Heller, and Breaking Celebrity News has learned he has a shady past — including "professional misconduct" that resulted in a suspension of his license to practice law.

Just moments after the perpetually arrested Lohan fired Shawn, Breaking Celebrity News exclusively reported the Mean Girls star hadn't made a payment to her attorney in sixth months and owes more than $300,000 in legal fees, according to a source close to the situation.

Meanwhile, Mark — who was also Jon Gosselin's divorce attorney — had a lengthy investigation around him in 1993 after he was charged with an astonishing 38 violations of department rules regarding conduct, Breaking Celebrity News was first to report.

On February 8, 1994, Mark was suspended by the Supreme Court of New York, Appellate Division, from practicing law for a period of five years.

According to court documents, there was "a pattern of misconduct involving misrepresentation, deceit, abusive treatment of clients, fee gouging, neglect and willful failure to return unearned retainers to his clients."