How to change my visa status from B1/B2 to F1

You may be able to adjust from the U.S. However, this depends on your specific situation. I suggest you consult an immigration attorney to discuss...

Can I change my address after filling of naturalization application for Citizenship of USA. Is it harmful ?

You are free to move as long as you update your address on your file. Good luck!

How long does it take the NVC to complete my case?

This process usually takes a few months but processing times vary by NVC. Good luck!

Decision can't made yet

It is difficult to predict how much longer you will have to wait as this depends on the officer's investigation of your file. You should expect to...

Your inquiry is a bit unclear, please clarify your situation.

2 DUIs arrest (pled guity to 1st and found not guilty to 2nd in trial), valid h1b, Should I visit family in India or not?

As my colleague has stated: the DUI alone does not render you inadmissible.

What are the requirement for a working visa in the US?

More information is needed in order to determine what options, if any, are available to you. Perhaps you should contact an immigration attorney...

My husband's I-130 petition is approved on 13th NOV. In how long he will get his interview call?

There is not set time for exactly how long it'll be. However, it usually takes a few weeks. Good luck!

Your inquiry is a bit unclear: what do you mean he has no documentation? If you meet all of the requirements, yes, you can petition your boyfriend.

Should we send form i130, i485, and form i864 all at the same time?

Yes, you can send all of the documents together. However, before you send the documents, I would encourage you to consult an immigration attorney...