My case has been returned to NVC.what does it means?why?now what happened next?

There is no way to determine “why” without an actual review of your case.

Attorney's Appearance at USCIS for Interview..

Your friend should search for a lawyer using the Avvo search tool.

When can I apply for naturalization?

You can apply 2 years and 9 months from the date of acquiring LPR status if married to USC or 4 years and 9 months if divorced.

No unfortunately you will need to refile the application with the correct spelling of your name to have it processed correctly.

Attorney's Appearance at USCIS for Interview

You may use the Avvo search tool to find an attorney to accompany you to the interview.

Attorney's Appearance at USCIS for Interview

You may use the Avvo search tool to find a lawyer who can accompany you to the interview.

Family based sponsorship?

Your sister may petition for you but you must wait the 12-14 years until the visa becomes available. Unfortunately you will not be able to use the...

What is the fastest way I can bring my fiancé back to America?

A review of her case must be made, including the basis for her deportation. Consult with an attorney for guidance.

I have received receipt number from uscis for i130 Does it mean uscis has cash my money order that i provided while filing?

Yes the receipt indicates that USCIS has accepted the filing and related filing fees.

Should I use my AP while I wait on uscis to make a decision ?

A review of your case should be made to determine the possible reasons for such a lengthy review. Consult with an attorney for guidance.