If you relinquish your rights you are not entitled to visitation.
There isn't really a way to force a father to relinquish his rights to his children. A mother can try to talk him into it, but whether or not it works is up to him.
no, see links below
He can ask the court to do so, yes.
see related link
Yes, but father can challenge.
Relinquish his rights, yes; however, doing so will not terminate his child support obligation.
My question is what forms can i get online for a father to sign over his parental rights.