请问8老师，兄弟亲属移民，在美国读书的孩子要回国跟他父母一起去广州办移民签证吗？
-Not necessary. The child can file I-485 within US after the parent (primary applicant) enters US using immigration visa, i.e. the child can not file I-485 until the parent enters US to become a green card holder first.
还是可以在美国单独交485？
