H1B 5th Year (Extension Due) Employer Change

[newtoearth]

I am on my 5th Year H1B here with employer A
My GC PD (EB2-I) Mar 2008 I140 approved with Employer A
Currently I filed for the H1B extension with Employer A, it is in processing (for 3 years)

Now
I got an offer from my client (Employer B) for a permanent position

1. Can I apply for H1B transfer to Employer B while the Employer A extension is pending?
2. If I apply transfer to Employer B, after Employer A Extension is approved, will I get 3 years extension?
3. Can I port my PD (As I have approved I140 with Employer A) to my GC process with Employer B?
4. Are there any other complications & Risks?
Please give me the information

[txh1b]

1. Yes
2. You can get a 3 year extension even now based on the approved I140 from A. However, B has to restart the entire GC process immediately and A should not revoke the I140.
3. yes
4. Plenty for you to talk to a lawyer.

[newtoearth]

Thanks for the response. I am on my way to lawyer