Do I need to hire an attorney for my son ?

Like the other attorney said, you may want to file for guardianship.

When do i have to send my exhibits to the court, at the same time i send them to my exwife or do I have to wait until court and

Its unclear if these are the exhibits for the motion, or if there is a evidentiary hearing scheduled and you are introducing for exhibits. If you...

Try legal aid or a law school for help.

Inquest for Divorce Case in New York State

There are no federal judges for divorces.

What happens to backed up child support when the other party paying passes away?

If there is a court order that states that he is the father, then he should be able to receive social security. You can also make a claim against...

How do I get the court to hear my visitation request?

Just file again. You should be fine.

Can I put in a petition for visitation for my younger children to get visitation with their half sister

You can always file, but you may not have standing, and it may get dismissed.

What is the procedure for filing an appeal to a custody decision?

He will need to file a notice of appeal within 30 days. The time table after that depends on which appellate division the appeal is filed in.

Help with moving to florida father of child will not let me leave

Its unclear as to what you are asking. Why would the child be homeless?

Do I have the right to prevent family members from entering or calling my home where I live with my terminally ill father?

Well, if its your property you control who enters and who does not.