Typically yes, but that may vary state to state.
In the state of Illinois, a biological father cannot give up his rights to the mother, but he can sign over his rights to another male. For example, a step father
No.No.No.No.
No, see link.
Custody, not parental rights.
The mother can, but not the father. see links below
yes the father has more rights to his child when the mother let another man sign. If the father should or want to he could fill out paper work on the mother and get her right.
Typically, a parent gives up her rights preparatory to an adoption.
She can terminate her parental rights, not yours.
No, mothers have 100% control. Only a mother can give up her rights with interference.
A child's biological father can have his name added to a child's birth certificate regardless of whether or not the mother agrees to it. If the biological father voluntarily relinquishes his parental rights and the child is legally adopted by another man, his name can be added to the birth certificate in place of the biological father.
He can always ask, but it will need an attorney involved.
No, unless the baby's biological father relenquishes his parental rights, he would get custody of the child if the mother dies, not her husband. The biological father must sign his rights away to the mother's husband.