Idaho Rules of Civil Procedure Rule 25(a)(1). Substitution of Parties - Death.
If a party dies and the claim is not thereby extinguished, the court may order substitution of the proper parties. The motion for substitution may be made by the successors or representatives of the deceased party or by any party and together with the notice of hearing, shall be served on the parties as provided in Rule 5 and upon persons not parties in the manner provided in Rule 4 for the service of a summons. If substitution is not made within a reasonable time, the action may be dismissed as to the deceased party.