Can I get J1 Visa after residing in US for 3 years on J2 Visa?

It may be possible for a J2 to obtain a J1 after presence in the US. The J-1 sponsor would confirm.

How early I can quit my employer after GC?

The naturalization application lists employers for the last 5 years. Changes in employment following sponsorship may be questioned when presented.

Can i go for h1b transfer when h1b extension is filed in premium process?

1, yes, 2, no, depending on how the B petition is filed 3, no, depending on how the B petition is filed.

My amendment petition got denied but still have old valid until mid next year. Can I re-enter in USA based on OLD H1B petition ?

A person with a denied H1B amended petition remains employment authorized at the approved worksite. A person on H1B departing the US may return ...

What will happen next after being asked to return when ban is over?

Wait out the bar then contact NVC to continue the processing.

Regarding application for us passport at acceptance center with notarized copy of naturalization certificate?

A copy of a naturalization certificate may be used to obtain a US passport.

Would I be denied green card if my husband and I live separately?

Living separately is the basis for a denial requiring one to refile an I-751.

An office move even a mile away to a different MSA can require a new prevailing wage and recruitment. What else may be done depends upon factors...

Once a green card is approved out of the country does the gc holder need to travel to USA asap? is their an expriration date?

the immigrant visa issued abroad has an end date, usually 6 months. Travel to the US is required before the visa end date.

What ?

It is very difficult to connect a withdrawal with the pending filing. Sponsoring spouse may make an infopass and withdraw the I-130. Before...