(A) Except as provided in division (C) of this section, each time a person seeking to adopt a minor or foster child will have at least five children residing in the prospective adoptive home after the minor or foster child to be adopted is placed in the home, an assessor, on behalf of an agency or attorney arranging an adoption pursuant to sections 3107.011 or 3107.012 of the Revised Code, shall complete a multiple children assessment during the home study. The multiple children assessment shall evaluate the ability of the person seeking to adopt in meeting the needs of the minor or foster child to be adopted and continuing to meet the needs of the children residing in the home. The assessor shall include the multiple children assessment in the written report of the home study filed pursuant to section 3107.031 of the Revised Code. (B) The director of job and family services shall adopt rules in accordance with Chapter 119. of the Revised Code necessary for an assessor to complete a multiple children assessment. (C) This section does not apply to an adoption by a stepparent whose spouse is a biological or adoptive parent of the minor to be adopted.