In any adoption proceeding, the biological father would have to be notified. However, since he has not been involved, and his involvement would mean child support, he may be willing to consent to the adoption. If he was aware of his daughter and still failed to support or have contact, there may be a way to force the termination of his parental rights if he objected in the context of a step-parent adoption.
Answered on Oct 29th, 2012 at 1:04 PM