1. 父亲现在开始申请公民, 要多久才能拿到?
-It is impossible for him to get the US citizenship before his child reaches 21-year birth date.
2.公民为超过21岁的成年子女申请绿卡, 有排期限制吗?
-Yes.
若有是多久?
-About 7 years for unmarried child; and about 11 years for married child.
3. 如果父亲现在以绿卡身份为儿子(未成年)申请绿卡, 要等多久?
-The child will be > 21 before the priority date is current (it is impossible in two months). So, he can not be 未成年 anymore.
如果在等待期间父亲同时申请公民, 等他拿到公民时再以公民身份为儿子申请绿卡(那时儿子可能已经超过21岁).那么这个申请是属于未成年子女还是成年子女?
-Same as above answer.
急盼回复.谢谢,