The government said it expects the trial of Dewey & LeBoeuf’s former leaders to take more than four months, and that one likely witness is John Altorelli, a former Dewey executive committee member who is now a partner at DLA Piper.

Prosecutors from the office of Manhattan District Attorney Cyrus Vance Jr. and defense counsel returned Monday to the courtroom of Supreme Court Justice Robert Stolz (See Profile) to discuss discovery and trial schedule.