My sons fathers doesn't won't. To deal With. Him can he sign over his Right to keep from paying child support

Not an atty but have own experience. It is worth getting an experienced attorney. In my state if that father is part of your sons life, they will do a calculation and you will have to support the father. What state are you in?

No, There is a myth that a parent can just sign over their rights, its only a myth. Only a court can terminate parental rights and no court will do so to let a parent out of paying support.

Have you gone to court for support?

ANY question on law needs to include your general locale as laws vary by area.