The acts and orders which this title specifies as performable by the district court may be performed either by a judge of the appropriate court or by a person, including the clerk, designated by the appropriate court by a written order filed and recorded in the office of the    court. However, without a written order of the court, the clerk may sign all appropriate documents in uncontested informal probate matters if the requirements of sections 30.1-12-08 and 30.1-13-01 have been satisfied, at least one hundred twenty hours have elapsed since the decedent‘s death, and the person seeking appointment as personal representative is named in the will or otherwise has priority under section 30.1-13-03 or others entitled to appointment have renounced the right to appointment.