Job change after filing 485& EAD& AP

[krs_ravis]

Hello,

 

Thanks in advance for your time. I have a quick question.

 

I have valid I-140 from employer -1. My PD is Mar 2011.

 

1. Can i file for 485, EAD & AP together?

2. After 180 days of filing the 485, can i change the job to employer-2?

3. Then assume that after 3 years, my PD would be current for final action. Then should i get the GC (assume there is no RFE) to my address?

or my current employer -2 should file for 485 again? my previous employer wont give the I-140 copy. 

4. suppose if any address change, how can i update my address with USCIS to receive my GC?

 

Please clarify me. Thanks