If you cannot obtain your son's father's consent to the adoption, you will have to prove to the court that he abandoned his son, which, based on the facts you give, should not be a problem. You will also have to give him notice of the adoption: if you don't know where he is, the court will order alternative notice, maybe by mailing to a relative that he might be in contact with, or publishing in a newspaper. You will likely need a lawyer to help you navigate all these challenges, and to make sure that things are done right and that the father can't come back later and try to assert his parental rights.
Answered on Sep 18th, 2012 at 3:47 PM