Can i start preparing my documents without get answer from USCIS?

Yes, you can begin preparation. As my colleague stated, some items are best left until you receive notification from the National Visa Center.

My I-94 expired on 10th August 2013 and my H-1B extension is under process. Now I got RFE. How many days I can stay in USA?

If approved, until the date of expiration of the new I-94. If denied, you will need to depart immediately. Please consult your employers...

Will my ex-husband get his permanent green card?

Possibly. It depends on whether or not the marriage was bonafide and not for the sole purpose of immigrating. As the officer stated, he will likely...

When filing a fiancé visa (K-1), the financial support form requirements?

Yes. Please review the instructions to the form. The following will be...

B2 visa to h2b

You need a prevailing wage determination, temporary labor certification and approved I-129. While not impossible, not likely for change of status....

On the G-325A, does the USCIS crosscheck listed employment history with tax returns?

List it. No cross checking will occur. You can always talk to a CPA about filing an amended tax return.

How to apply for asylum, my county at war and I am undocumented right now

Yes, you could apply for asylum based on changed country conditions. Consult a qualified immigration attorney. As for your TPS, when did you...

Im on F2 visa and got divorced and rushed into things what if i get married to him again.. will my status be the same ?

You are on F2 or were on F2. And you say adjustment of status, were you or are you now married to a USC? Please clarify or repost explaining your...

To the point, no. It is a contract between your father and the government.

I have an interview for the I-751 form, I am trying to postpone the interview date. Good idea or not?

My colleagues are correct. Absent a compelling reason for rescheduling, it is not a good idea.