My question involves name change laws in the State of: New York. I was never married to the father of my baby. I left him because he didn't take responsibilities and he didn't even care if I was starving or not so I left and got helped from my parents. I had the baby and I put my last name on the baby's birth certificate, the father left and didn't know anything of him until 6 months that he showed up without even helping or even bringing anything to the baby. The second thing is that he took me to court for paternity and it's established, but I have sole custody of the child and I've been doing everything on my own because he doesn't help out so took him to court for child support even that he can't even pay child support. The baby's doesn't like him cries when he sees him even hides when he sees him. I wanted to know can he change the baby's last name if on the birth certificate has my last name can he do that???