No, there should not be any issue of them returning, but of course anything is possible.

There could very well be an issue of not living with your spouse, if you want to file for naturalization three years after getting your permanent...

Yes he can stay, no he can't study, there is no longer any need to file a "bridge' B2. As such he does not need to show he filed any application...

Perhaps you have "supervision" or "deferred action"? Otherwise, the correct answer is none. Finally, if this question relates to your tax...

If you have an arrest for a felony, it would be advisable to have a lawyer help you with the application.

You should have received it. Contact customer service to get a passport stamp as temporary proof of your status.

If she is in the U.S. in legal status and the visa is available, yes, she can file to adjust status.

Adjustment is much faster and it allows you to live together while the application is pending. Yes, a Canadian can file to adjust status if they...

The attorney represents your employer and not you. You may wish to hire your own lawyer.

I'm not sure "interfile" is the right term, but you can indeed base your I-485 on your own i-140 instead of your husband's I-140.