How do I voluntarily terminate parental rights?

If your child's mother and step-father are interested in moving forward to terminate your parental rights and to do a step-parent adoption, then usually they would present you with a legal document that you can review and sign that would voluntarily relinquish your parental rights to your child.  However, if they are not interested in pursuing a termination and adoption it is highly unlikely that a court would allow you to voluntarily terminate your rights.  Courts typically will not terminate a parent's rights unless or until someone is stepping up to assuming those rights that you are asking to be terminated.