If any such owner or proprietor is a person under a disability as defined in § 8.01-2, the circuit court of the county shall, at the time the clerk shall issue such process, or as soon thereafter as practicable, upon the court’s or judge’s own motion, or upon the suggestion of any party in interest, appoint for such person a guardian ad litem, who shall faithfully represent the interest of the person under a disability and whose fees shall be fixed by the court or judge making the appointment.