H-1B visa holders are allowed to study in the U.S. without having to change status as long as the study is incidental to the H-1B status that they are currently on.

According to a recent UCSIS-American Immigration Lawyers Association meeting Minutes, you would have to wait for an approval before commencing employment.

The Employer may not compel you to execute any document based on a threat. The employer also does not have the power to revoke your Permanent Resident Status.

H-1B petitions are employer specific. The new employer would not be able to continue the earlier filing, or challenge the rejection.

Yes, that would certainly be possible.

The H-1B status is only granted upon entry into the United States. Mere approval does not grant status if the individual is not in the country at the time.

My wife finished her Masters and has been working under OPT and has H1B approval. Now she has an opportunity to move to a non-profit research organization. 1. Does she need to get a visa stamped on her passport, before her new employer can transfer the H1? Answer: That would not be required. 2. Is [...]

There is no way for you to update the PIMS database directly. However, you are allowed to send a duplicate of the petition package to the USCIS Service Center where the petition was originally processed requesting it be forwarded to the Kentucky Consular Center for entry into the PIMS database. This request must be boldly [...]

I entered USA on H-1B and changed the status from H-1B to H-4. Now I would like to change my status back to H-1B once I get the job confirmation. I have to file "change of status" from H-4 to H-1B and it won’t be subject to CAP as I previously held H-1B status, am I correct?  [...]

We could certainly assist you with the H-1B process. However, we do not get involved directly with placement of candidates, or actual recruitment. We suggest you contact a local recruiter for opportunities.