What is the difference between alien file and non-alien file with regarding to form G639

It is the FOIA form that allows you to request your information.

Immigrant Visa Stamping. I am a LPR, sponsored Immigrant Visa - F2A for my wife in India

She should. However with the limited amount of information provided, it is hard to tell for sure. You should consult an attorney if your problem...

Do I need to go immediatly for stamping after the H1 transfer is approved ?

You do not need to leave the US because your visa has not expired. Consult your current immigration attorney.

I am applying for H1b via two employers. Will the USCIS send me a rfe?

You can have two different employers file on your behalf.

Expired GC outside the US

You should consult an experienced immigration attorney as soon as possible.

There is no way to be grandfathered in unless a separate petition had been filed for you as well. In that case what happened with the process? In...

During the naturalization interview does the husband still need to be present w/ you?

Your husband does not need to be present at the interview.

Deportation proceeding

I am really sorry about your ordeal. You should consult an attorney as soon as possible. Being a fugitive will not serve you well.

Renewal of EAD for Asylum applicant! free or 380$

You will not have to pay the $380 in fee for the application.

I sent my application for naturalization (N-400) incomplete.

You should contact them andask them what they want you do in your situation in an attempt not to waste too much time.