My grandchild is living with me and there is a child support order for the non-primary parent to pay child support, so the payments are going to primary parent; how can I receive the child support since I am the one caring for the child?

It is possible for a new caretaker to get child support through a process called a Transfer of Support Rights. This process transfers the support payments to the caretaker. Assuming the payments are going through the Arizona Clearinghouse, you will need to provide proof that you have had the child for at least 30 consecutive days and both parents under the current child support order will be notified about the change in payments.