H-1B 60 days grace period H-1B transfer; Impact of switching to B-1/B-2; and family visa validit

Question details

1. I am currently in a 60-day grace period due to a layoff and am in the process of finding a new employer to file an H1B transfer. I have two questions regarding my situation:
If I apply for a B1/B2 visa on the 59th day of my grace period and it is approved within two weeks, can my new employer still file an H1B transfer using premium processing? 

2. Specifically, I am concerned about the impact of my status change from H1B to B1/B2 and then back to H1B on the processing of the transfer.

3. My family members hold a valid US visa stamping until March 2027, which was obtained using my previous employer's I-797. Can they enter the US using this existing visa with a copy of my new employer's I-797 at the port of entry?

 

ANSWER
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FAQ Transcript
  1. No, because if you are on B-1 or B-2 status, then you are not on H-1B. 
  2. If the B-1 or B-2 status is approved, then it obviously replaces the H-1B. 
  3. You can maintain the H-1B only if necessary.