I live in the United States. A woman asked my wife to provide daycare for her children. The woman is going through a divorce and isn't on speaking terms with her husband. The husband, who has moved out of state, has been ordered by the court to pay 70% of the daycare expenses. The husband is okay with paying my wife for daycare and plans on paying his share to her directly. He's also okay with his wife's family members caring for the children, but not for pay. (He doesn't like them and refuses to agree to pay them anything.)
Is my wife within her rights to pay the children's grandmother to help out with some of the daycare? My wife would be paid by the children's parents and then she would forward a portion to the grandmother in exchange for her help. Would it make a difference if the children's mother paid her portion directly to the grandmother instead of having it forwarded via my wife? What sort of legal risk would my wife and I be exposing ourselves to?