Yes.
Yes, the changing of a name has no bearing on the child support.
YES, NAME DOESN'T MATTER. AS LONG AS CHILD IS YOURS AND IT HAS BEEN PROVEN YOU ARE RESPONSIBLE.
The fact that the 18-year-old legally changed their name is irrelevant. Legal Dad (which would be biological Dad, not step-dad) is still responsible for child support for as long as the court has ordered.
Yes.
Yes. The child does not need to be named after the father for him to be obliged to pay child support. He needs to be the biological father, that's all. Child support obligations arise from being the biological parent of a child and not on the child's name.
If there is an order in place, yes. If there's no order in place, one can still be done for 2-18 years of retroactive support
Changing ones name does not change ones paternity. If the child support order is in effect, the only way to change it would be by court order.
The child's name means nothing. Support is based on parentage.
A child does not have to have the same last name as the biological father to receive child support from that father.
The State child support agency should be able to find him with that information.
Child support has nothing to do with the child's name. Just because you pay support, the mother is not obligated to give the child your last name. Many people feel that the child will be more comfortable having the same last name as the custodial parent.
If you mean that the mother changes the baby's surname, of course.If you mean that the mother changes her surname to the father's (the same as the baby), of course.