下个月NIW的PD current, 但是准备今年回国工作一段时间，请教下8老师下面几个问题：
1）去年10月提交了I824申请AOS转成CP，如果直接回国的话是不是等到I824被批准后等NVC通知去广州使馆签证就可以了？
-Yes.
这样拿绿卡的风险比等在美国AOS大吗？到时候还需要先拿到offer letter才能移民签证吗？我的140是NIW
-Technically you don't have ot have a job offer, but practically you had better have a job offer from a US employer when you are scheduled for the interview and thus, it will be much easier for you to get the immigrant visa.
2）如果按照上面CP操作的话，会不会总的流程比AOS要慢个6个月左右？现在I824好像批的很慢。有没有办法拿着I824的receipt number和批准的I140联系NVC要visa number的呢？还是非要等I824批准？
-Your I-824 must be approved first, then USCIS can forward your case to NVC for processing for the visa application. It takes much longer time than you file I-485 within US to get the green card.
3）如果在美国等绿卡的话，是不是等到拿到AP就可以边回国边工作边等绿卡了？
-Yes you can, but USCIS may ask your employment status within US (see above answer).
我现在是H1B，如果回国的话H1B就失效了，这会有影响吗？
-No.
还是非要等到绿卡正式拿到才能回国？
