Proceedings on the petition shall be conducted in the same manner as would be applicable in a case for appointment of a successor guardian under section 475.115.
The person shall, within ten days after he or she begins to act as standby guardian, notify the court in writing of that fact and of the reasons therefor. The court may grant letters of standby guardianship to the person or, if the court deems it advisable, conduct a hearing to determine the propriety of the person having begun, and continuing, to act as standby guardian and the propriety of issuing letters of standby guardianship to the person.
§ 475.046, RSMo