(a) The court at the place where the ward resides has concurrent jurisdiction with the court that appointed the guardian or in which acceptance of a parental appointment was filed over resignation, removal, accounting, and other proceedings relating to the guardianship.
(b) If the court at the place where the ward resides is neither the appointing court nor the court in which acceptance of appointment is filed, the court in which proceedings subsequent to appointment are commenced in all appropriate cases shall notify the other court, in this or another state, and after consultation with that court determine whether to retain jurisdiction or transfer the proceedings to the other court, whichever is in the best interest of the ward. A copy of any order accepting a resignation or removing a guardian must be sent to the appointing court or the court in which acceptance of appointment is filed.