Bernard Madoff (MAY'-dawf) was likely to speak in court in an attempt to clear his lawyer of any potential conflicts of interest.
Defense attorney Ira Lee Sorkin's late father once had an account with Madoff. The lawyer also represented two Madoff-linked accountants in a securities case 17 years ago.
Madoff is expected to say he doesn't mind the potential conflict.
Prosecutors have sought a hearing Tuesday before Judge Denny Chin in federal court.
The court appearance is expected to be a warmup to Madoff's Thursday plea hearing when he is expected to plead guilty in the case. At least 25 investors have indicated they'd like to speak Thursday.
The 70-year-old Madoff was arrested in December and accused in a $50 billion fraud.
