H1 transfer denied - ways to remain in USA legally

[h427742@gmail.com]

I work on H1 for emp A, now transferring to emp B.  Emp B is end client & I am their first H1 guy out of their 2000+ employees.
If transfer is denied after 3-4 months & emp A revoked my H1, then how can I make sure to remain in USA legally?

[Shurap1]

If you are still employed with emp A, then why would they revoke your H1? If that happens, then you would need another H1B sponsoring employer immediately.