Previous documentation can be submitted but updated is best.

It can take 30-90 days for correspondence with NVC after all documents are submitted.

Schedule an appointment to do so as walk-ins are not accepted.

You can do a FOIA request to obtain your immigration history.

You should only have one A number and the other GC can be returned to USCIS.

You should indicate your adjusted gross income as indicated on your return.

You may petition for your spouse through a spousal visa which will take between 16-24 months.

The applicant would apply for visitor visa on his own.

Contact NVC to inquire about reopening your case.

She would apply for a student visa on her own.