Dear Attorney's,
My H1 Extension denied.

Reasons given by USCIS
1. My company was not able to provide end-client letter
2. My company business location appears to be have small physical area in rooms where as the employee count appears to be high 245+
(Its a consulting company and employees work at different locations)
3. USCIS also says that my company is working as a "token employer" - contracting agent.
4. The portion of the petition requesting an extension of stay or change of status for the alien is now being denied as the non immigrant visa petition filed in the aliens behalf has been denied.

What is my status now?
What are the chances of my I-485 getting ?
approved if i work for same company?
Should i change employer using AC21 to save myself?
Please advise...