If the bio father of my child want nothing to do with him and does not acknowledge he is his father and says even if he was he would not claim him and has never seen him in person nor wants to take a DNA test to prove anything do I still need him to sign papers legally giving up his rights to him so in the near future he can't just pop up in his life I do not want any child support just proof to my son that this was not my fault he abandoned him what should I do the father also has other children him and their mothers does not want them to know him either nor does his grandma and uncle what should I do and how do I go about doing it?