let me try to categorize:
**FORM with 2 photograph ****write name and A# if u have at the back
to prove eligibility for 485:
primary:
1. only I-140 approval or receipt notice
depenent:
1. only I-140 approval or receipt notice of primary
2. marriage certificate (or something establishing relationship)
3. I-864 or I-134 (not mandatory, but my university immig person made me send I-864 even though that form is not for employment based category)
4. i sent: tax returns, recent w-2, 2 recent pay stubs/slips of primary to prove income (because of I-864)
-------------------
to prove legal status:
1. all past immigration papers, I-94, H1B/ F1/J1 etc...
2. color copy of non-immigrant visa (blown to full page, not must, i did it)
3. color copy of all pages of passport, just in case, i did not send because university staff suggested, but some people got RFE
information about applicant:
1. g325a form, all 4 copies
2. passport biographic page (blown up to full page)
3. birth certificate
4. 2-3 recent pay slips
5. recent w-2
6. I-693 Medical report for all applicants
7. Employment Verification letter with salary mentioned, with both primary and dependent
8. for dependent: 485 receipt notice or approval notice if not filing together
*****if J1/J2 copy of waiver certificate from US agency(maybe DOS)****
i hope i did not omit some from your original list....
i will try to check with my checklist...