Name on birth certificate

You have to file a petition for name change. You also likely have to give the biological father notice as well.

I have a 5 year old boy, his biological father is not on the birth certificate

Your fiance can adopt but you have to give the biological father notice and either get his written consent or terminate his parental rights.

What kind of lawyer would I have to hire to help file motions for my husband?

criminal defense attorney

What do I need to do to get full custody of my son?

File your papers with the court requesting primary custody of the child. A lawyer is recommended.

If ive already filed a response, how do i make sure what i wanted was clear if i wanted to go back and add to my response ?

You can always file a request to amend your documents and then amend your documents.

Do I pay child support when child and mother moved in with me 45 days after court then 2.5 years later she moves

not sure what you are asking. If you are on SSDI your kid is also entitled to SSD

Can I gain custody of my son if my ex is found unfit to b a mother even if Im not on his birth certificate?

you are the father you certainly have the right to custody. You vs. Grandmother you will win.

About minor child

legally you are responsible for that child until she emancipates. 18.

What is substantial time sharing when wanted by a petitoner in a paternity and related relief case?

looks like he wants 50% custody

Yes you can subpoena his w-2s