⦁ Contact Family First Law, LLC if you are requesting child support from a parent or if you have been served with a request for child support. Child support is financial payment that goes from a “non-custodial” parent to a custodial parent. The purpose of the payment is to aid in the care and upbringing of the child. Missouri and Kansas calculate child support based on specific calculations. The laws change regularly and the process for calculating child support payments can be complex. It is important to have zealous representation on your side to assist in a child support order.