How long is H1b change of employer gets approved?

Hi guys,

I accepted an offer with a new employer and the law firm is preparing to file a H1b Change of employer request for me. The HR told me my start date can be adjusted to wait for my visa gets approved.

With the current rule to only file under regular, I’m wondering how long will the new H1b be approved?

In addition, I know I am permitted to start working as long as a receipt is received. Is there any risk of potentially getting a new petition be rejected?

Thank you!

The H1 transfer is currently taking 6-8 months to get approved in regular processing. If the transfer is rejected and if your previous employer has not withdrawn your petition, then you can either go back to your previous employer and work or you can again initiate transfer to another employer.