N.D. Cent. Code § 14-09-08.17

An obligor whose child support obligation is delinquent may not renounce, waive, assign, transfer, or disclaim any interest that obligor might otherwise claim in a decedent's estate, a trust, or a similar device, to the extent necessary to satisfy the delinquency. Any attempt to renounce, waive, assign, transfer, or disclaim such an interest is void if attempted after notice of the delinquency is furnished to the person administering the estate, trust, or similar device, and is otherwise voidable.