The OP has mentioned two children, of which both fathers have child support orders:

Post #1:  "Ex owes me nearly $30,000 in back due child support..."

Post #9:  "I have another case with another father who owes me past due support..."

If there are child support orders in the two cases mentioned by the OP, then each of those children have legal fathers.  The AOP (in either case) is irrelevant.