child custody rights

Does the biological father of a child have any rights to have or see his child if he has not been married to the child's mother.In this case, The father was present at the child's birth, lived with the mother for a year and a half before the child's birth and up until the child was 6 months old. Mother has kicked Father out and will not allow him to see his child.

Get an attorney and have them file a petition for visitation.