I am a friend of the family and am asking this question in their behalf. Mom lives in PA. Dad just got out of prison and is now living in NC. Parents are not divirced. It is agreed that the two younger boys, 12 and 14 should move to NC to live with Dad. Are there any legal papers that need to be signed to make that happen? Mom has theiir birth certificates and social security cards ready to go. Mom does get food stamps and welfare here is PA.