see one of my old post

http://web.wenxuecity.com/BBSView.php?SubID=immigration&MsgID=145112

http://web.wenxuecity.com/BBSView.php?SubID=immigration&MsgID=145281

1。首先看她的护照何时过期。道理上H4应该跟你h1相同的过期日前。但如果她的护照过期日前早于你的H1过期日前，你应该先延期护照。
2。如果不是，那就是入关的官员错误，你可以去当地的Deferred Inspections office去更改。

如果你必须要作H4延期的话，自己办就可以了。主要是她的护照复印件，婚姻证，你的材料。file i-539 form and 200 dollars. USCIS has all detail information. the waiting time depended on which center you are. they also post waiting time on USCIS website.

once you file I-539 for extension, she is legally staying here. it was called PENDing status. she is not illegal. don't scare both of yourselves.

我朋友有相似的经历。入关时给了半年，是因为护照9个月后过期。今年才发现，I-94 早过期了。当时都以为黑了，结果跟本不是那么回事。我就帮他们file I-102 表更改了错误的I-94。你可以看我的前两个帖子。