H4 EAD for employment change

[pallav29]

Hi Team,

I have few questions regarding H4 EAD:

1. Once my I-140 is approved, how quickly I can change my employer?

2. If I change my employer and my wife is on H4 EAD, will she loose her employment?

3. If I change my employer,after my I-140 approval,  do I have to re-start my perm again? will my new employer do a i-140 transfer?

4. My employer has filed my GC for EB3. Can I  hange this later to EB 2?