JoeF

Visitor and student status don't allow immigration intent. You have shown immigration intent with the I-140, so this won't work. Also, it takes several months to get accepted at a university.

How would you transfer the H1? You can't do it yourself, that would be illegal work for the company. You also can't instruct somebody else to fill out the paperwork, the act of telling somebody to do it is also work. Further, a college degree is not required to run a company, so it is not possible to get an H1 for that to begin with. The bottom line: This is not going to work. Period.

On H1 you can only be a passive investor. That means putting money into a business and otherwise staying out of it. Working for the company in any form is not allowed, not even for free. Read https://www.murthy.com/2014/01/28/home-based-businesses-inadvertent-unauthorized-employment/

Yeah, H1 revocation has absolutely zero effect on the I-94.

Non-commercial agreements across states can be tricky. As far as I know it applies where you live. I remember a case that was in the news years back, where some pretty high level executive moved to California for a new job, and his previous company sued. The courts in CA ruled that the non-compete was invalid in CA where the new job was. But anyway, again, these are questions that you need to ask a lawyer. I am a lay person.

Labor law is state-specific. If you are looking for a labor lawyer you can use the referral service that the State Bar in your state has.

You need to have pay stubs to prove that you are in status. If employer A didn't pay you file a complaint with DOL on form WH4. That's the only option, no matter how often you post similar questions. You got answers here already: Follow the advice.

File a complaint with DOL on form WH4.

Since you are not in H1 status you have to wait for the approval of the new H1. Working with receipt is only possible if you were currently in H1 status working for the old employer.

An F1 does not allow immigration intent. However, you have shown immigration intent with the I-140. So you won't be able to get an F1.

No, you can not use your PD with her case.

No.

On H1 you need to get paid all the time, even on bench. If the employer revoked the H1 they laid you off. If the I-94 is expired you don't have any grace period. Did the extension not come with a new I-94?

The PD is always, for all cases, the date the first application in a case reaches the authorities. In family-based cases that would be when the I-130 is filed.

What category? Did your employer file PERM? If so, the date of filing PERM would be the PD.