最近公司動蕩不安，我太太想要從O3 轉成F1 status to be independent。由於I-539 processing time up to 12-15 months now, 我擔心在F1 approval 之前，O3簽證已經失效了。那就必須要B-2 status to close the gap， before changing to F1.
1. How can my wife change status from O-3 to B-2 status? 還是用I-539嗎？-Yes.這個轉化需要多長時間？-Normally abput 3 months.
2. 可以兩個I-539 同時提交嗎？-Yes.還是需要等B2 I-539先批下來，再提交 another I-539 from B2 to F1 status change?
3. 因為我們的NIW I-140已經批準了，但還在等排期，需要在I-539裏特別注意什麽嗎？-It is not related to your spouse's status change. But I would suggest your spouse go back to China to get the F-1 visa to come back, not file I-539 to change the status in US because it takes too long time for change of status to F1 in US and you don't know what will happen in this long period of time.
