H1b Extension and transfer status

Hi Kumar,
I am on H1b and my H1b is expired on September 2019. In April 2019 I filed my extension and amendment and received rfe. Then Before submitting rfe from my previous company I changed my company and filed H1b transfer and extension on october 2019 and received rfe. My rfe submission date is on june 2020. My question is:

  1. As per case my 240 days will complete on may 2020. Can I work after that or I need to leave my present job, if I will not receive any response from uscis before my 240 days complete?
  2. What will be my status after may?