Immigration question: should she file taxes or not?

I agree with my colleague. Not sure of the form for a tax id but an accountant should be able to provide more information on that.

Yes, what you described is perfectly normal. Depending on the officer, it may take a few days or even a week or two to update the system and issue...

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FOIA and Naturalization

Yes, there could be a delay. Fortunately, however, I'm seeing FOIA requests fulfilled in about 3-4 months, so it shouldn't result in a great delay.

I agree with my colleague. It's almost not even worth it to pursue!

Administrative processing

Yes, it's still undergoing review.

No, not with the filing of the I-130 petition.

How can I skip 1 semester Cauz get married

You really shouldn't but, if you plan on it, meet with an immigration attorney first.

I-130 questions on Alien Registration Number ?

Work with an attorney. If you're the same person who has posted multiple times, it is a misuse of Avvo.

In an accident and received a summons - I'm here on a B2 visa and currently going through the immigration process

No, not necessarily.

Overstayed C 1 "transit visa"

If it was a pure transit visa (not a crewmember visa or something similar), then you can file for Adjustment of Status based on marriage to your...