Can you please help me I have some more question.
What if Company A revoke my H1B petition before Company B initiate change of employer petition ? Company B can still transfer H1B ? if yes, then what is the difference between this (current company A revoke) and the H1B transfer to company B by holding valid visa from company A.
Can I travel to US and start working on company B with only H-1B receipt notices or I need to wait for status approval notices from USCIS. (for both cases, post-revoke and transfer by holding valid visa with company A)