Ark. Code Ann. § 28-65-206

When an application is made for the appointment of a guardian for two (2) or more incapacitated persons who are children of a common parent, or are parent and child or are husband and wife, it shall not be necessary that a separate petition, bond, or other paper be filed for each incompetent, and the guardianship of all may be considered as one (1) proceeding except that the guardian shall maintain and file separate accounts for the estates of each of his or her wards.