Ohio Rev. Code § 3109.053
In any divorce, legal separation, or annulment proceeding and in any proceeding pertaining to the allocation of parental rights and responsibilities for the care of a child, the court may require, by rule or otherwise, that the parents attend classes on parenting or other related issues or obtain counseling before the court issues an order allocating the parental rights and responsibilities for the care of the minor children of the marriage. If a court in any proceeding requires parents to attend classes on parenting or other related issues or to obtain counseling, the court may require that the parents' children attend the classes or counseling with the parents. If the court orders the parents to attend classes or obtain counseling, the court shall impose the cost of the classes and counseling on, and may allocate the costs between, the parents, except that if the court determines that both parents are indigent, the court shall not impose the cost of the classes or counseling on the parents.
R.C. § 3109.053