
Quoting
Mr. Knowitall
An H1B "transfer" refers to the process of starting employment with a new H1B employer while the petition remains pending, based upon your being in status on a H1B visa at the time of their petition. Each H1B application is independent, so an RFE on one won't affect another.
We would have no way to tell you the odds of getting a RFE on a second employer's H1B petition, as we don't know the grounds for the one already issued or whether there might be entirely different issues with the new employer that would trigger a RFE.