Does my wife need to go back to Canada?

A visitor needs to exit the country before their I-94 expires. Your question is very specific so it is best if you spoke with your immigration...

Yes. You can travel abroad while your N400 is processing.

Yes. You can get married in the U.S. while on B2 to an H1b holder. It will likely be a better option to return to your home country to get an H4...

I'm a green card holder in the U.S, can I get married to someone in a foreign country ?

Yes. You are able to marry someone in a foreign country while a permanent resident. Consult with an immigration attorney regarding travel while...

Can I apply for green card as an F1 student?

There are opportunities to adjust status to a green card from F1 status. You need to speak to a competent immigration lawyer for a specific...