On any accounting by an executor, administrator, temporary administrator, guardian or trustee, any creditor or any other party interested may file objections thereto in writing within such time as shall be allowed by the Surrogate. Such objections must be served upon the accounting party or the accounting party's attorney before the filing thereof in the court. A guardian ad litem appointed in an accounting proceeding shall file a report or objections within 20 days after the appointment unless for cause shown the time to file such report or objections is extended by the Surrogate.