H-1B Visa

I am an international student and recently working for an organization. Please let me know what job title, position, salary, and other requirements I need to get for applying for working visa. Since my organization is really willing to help me and is ready to adjust with my position title and other things. Education: M.A Global Development and Peace, specialization - International Political Economy and Development

1. While I am moving my H-1 New Employer B, What if something goes wrong during H-1 transfer or after that in GC processing with new employer like RFEs etc comes up, can I move back to employer A if employer A is willing to take me back. Does AC 21 portability rule applied to my case also? Since I have not filed I-485 yet, as per my understanding this rule does not apply to me. While my GC is in process with new Employer B and I am in waiting mode for I-140 approval with new employer, What will happen if my time to extend H-1 petition comes up.
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2. Can I still extend my H-1 with new Employer even if I-140 with new employer is in process and not yet approved. Can I use my old Employers approved I-140 to extend my H-1 in this situation.

I was on H1 before completed all 6 years on it and converted to H4 and working on H4 EAD now. With latest court update, USCIS may decide to end H4 EAD program or stop new applications in next few months( we still do not know the final outcome). My EAD expires in November 2018 which leaves me no option of applying renewal before May 2018 ( 180 days clock). If this EAD goes away will I be able to file fresh H1 in April 2019 ? If in next couple of months, my spouse decides to switch Job based on his approved I-140 then my H4 will also need to transfer/extend. At the same time, will I able to extend my EAD at that time or I still have to wait to fall under 180 days expiry clock based on my current November 2018 EAD expiration date.

I am a staff in University of Pittsburgh and still have 3 more years to complete 6 yrs of my H1B. H1B sponsorship is an issue for me getting a new job.
1) When I apply for a NIW -EB2, can I simultaneously apply for I140, EAD, 485 simultaneously?
2) Although the green card date for Indians with EB2 is not current, can USCIS approve my EAD much earlier ( may be within a year) compared to approving 485 which might take several years?
3) Further can I use that approved EAD to change jobs by bypassing H1B sponsorship?