Can two married people in different states still file for a citizenship

If she does not have a green card, then you can file the family petition (I-130) for her, based on which she could obtain U.S. residency. If she...

No, you cannot change your status on K-1. Its sole purpose is to either marry the fiance within 90 days of arrival or depart.

If my husband doesn't work and we need his mother to support, she need to fill form I864 or I864A?

Consult an attorney regarding filing the affidavit of support. It involves too much detail to be discussed based on the facts you provided.

My sister filed for my wife and two kids about ten years ago. my interview date is in April 2013, but i recently had a divorce.

Your sister could not have filed for your wife. She could file family-based petition for you. Your wife and children under 21 would be the...

I'm F1 student, my grace period will finish in 60days. Will I be able to extend my visa on a course with no I20?

There is no F-1 without I-20.

Can I lose my green card if I get a divorce after 7 months of marriage?

Yes, you can. But, burden is on you to show the marriage was bona fide and your intention was genuine at the time of marriage.

I am in removal proceedings and my individual asylum hearing is soon, I have I-130 and j-1 waiver pending, can hearing postpone

Some immigration courts work with pro bono immigration attorneys. So, ask the court, if that is an option. In the worst case scenario, if you...

Visiting the US on vacation with an open Green card application?

Probably not.

Talk to your advisor at the International Student Affairs Department. She/he should have the details of your visa and is in a better position to...

What tax documents should a J-2 visa holder who is a resident alien file?

A CAP would be in a better position to answer this question, than an immigration attorney.