现在的情况是月底走人，而另一家的Offer 还没来。
HR 人告诉我：你一走，我们就得向移民局报告。因而：
问题1：我是不是应该在H签证失效时，接着申请B2。
问题2：B2 申请交上，就算合法逗留，是从邮递日期开始算还是从移民局收到申请开始算？
问题3：如果B2申请刚刚交上，另一家的Offer来了，这时比较好办，取消申请即可。如果B2签证已被批准，事情有点麻烦，从B2转回H签证，加急办理约需多久？
问题4: I-539 表有几问，我不知填得对否, need to confirm with you (Background: we have been F1/F2 visa holders. We only applied for and got our current H1/H4 visa. )：
(1). part 2, Q2: "Is this application based on the extension of change of status already granted to your spouse, child or parent?" (I think it is NO)
(2). Part 2, Q3: "Is this application based on the separate application to give your spouse, child or parent an extension or change of status? (I think it is NO)
(3) Should I include my 17-yr old kid as a co-applicant? (I think it is YES)
多谢你们。常常感到谢字不能表达我们的心情。