Maraj’s attorney and the judge presiding over the case, Robert Mcdonald, were not present during the signing.
Les Levine, a private investigator who was with Maraj at the hearing, told BOSSIP they had “no comment” about the case.
In April, a grand jury indicted Maraj on felony child rape charges, including predatory sexual assault against a child.
Maraj, who works for one of his sister’s companies, could face life in prison if convicted in trial, which is scheduled to start in November.
Minaj has supported her brother in the case since the outset – posting his bail and putting the house that she bought their mother up as collateral.
He could reduce that sentence if he pleads guilty to an “A-II felony” of predatory sexual assault against a child, prosecutors said last month.
Sholder said she couldn’t comment on the status of the plea bargain because “it’s a sensitive case.”
Maraj’s attorney, Andrea Zellan, was not immediately available for comment.
Maraj is scheduled to appear in court on next week.