RFE is to prove "Continuous emplolyment. Following documents needs to be submitted.
1. All EAD cards for you and your spouse;
2. All H-1B and/or H-4 approvals for you and your spouse since date of filing 485;
3. I-94 from passport - the white card - for you and your spouse;
4. 2 recent passport size photos for you and your spouse;
5. Current home address;
6. If you travelled on AP - then All AP docs for you and your spouse;
7. If you are NOT working for the Petitioning employer - then you will need to file AC21. Please confirm whom you are employed by. AC21 requires an additional legal fee;
8. 3 recent pay stubs for you;
9. W-2 for 2011 and 2012 for you;
10. Legal fee as per the attached invoice.