(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 or spousal appointment was filed over resignation, removal, accounting, and other proceedings relating to the guardianship, including proceedings to limit the authority previously conferred on a guardian or to remove limitations previously imposed.
(b) If the court at the place where the ward resides is not 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 may be in the best interest of the ward. A copy of any order accepting a resignation, removing a guardian, or altering authority must be sent to the court in which acceptance of appointment is filed.