1。里面提到的 I-751 removing condition 不会和我们有关吧？
-Not your business.
2。是不是说，在拿到正式绿卡之前，他们就可以自由返回国内了？
-Yes. After they enter US, they are geen card hodler. The IO will put the green card stamp on the passport at the port of entryand this green card stamp has the same functions as the physical GC.
等绿卡到了再给他们寄回去就可以了？
-Not need it. See above.
3。如需要在国内呆一两年的，是不是最好办AP？
-Not AP, but RP (renetry permit). After doing the fingerprinting, they can go back to China and the you can send the RP to them.
在AP办好之前，能离开美国吗？如果能，是不是也需要把办好的AP寄回国内？下次入境的时候要用到吗？
