追问一下8老师，周末愉快！

感谢8老师周五晚上仍然辛勤的做指导！追问一下：

如果主申请人绿卡已批，作为配偶的副申请人为需要CP的对象，那么您说的：

留美国的地址给NVC进行联系是否没问题，只是等收到面试通知回国体检+面试就可以对吧？
-You had better change your address to your friend's address in US so that your friend can receive the USCIS/NVC  letters for you. You also assign your friend as your agent when NVC ask you to idenfity an agent in the future. Thus, your friend will receive all of the NVC letters for you.

---这里的agent也可以是在美国的主申请人吧？即绿卡已批的主申请人可以作为CP申请人（副申请人）的代理？

 

另外如果走CP的话，整个过程中需要主申请人的140批件和petition letter吗？（雇主不realease 140材料，只有140 number）
-Your employer needs to file I-824 to ask USCIS to forward your I-140 to NVC for processing your immigrant visa application. So, talk to your employer or lawyer.

-----这里如果主申请人绿卡已批，是不是可以以主申请人的名义为follow to join的副申请人file I-824? 还是I-824一定是主申请人的雇主发出？