Form I-140

Background:
Working in the US on H1B, approved I-140 7 Years back in EB2. Now, there is an opportunity in my current company to manage 1 or 2 employees outside the US. And the same in the US. If the EB2 India dates don't have a good future after this year, I am thinking of going out of US work in managing capacity and coming back on L1A and trying EB1C.

1: With just 1 or 2 employees (senior resources e.g. VPs or AVPs in the financial domain ) reporting to me, how are the chances to get EB1C approved?
2: In your opinion, do you see EB2 India touching 2015 anytime this year, considering they have some spill over from last year? Or you suggest a plan for EB1C if the situation exists?

My I-140 and I-485 is pending, my OPT has  expired. Can I stay back in the U.S until I get my green card EAD ?

Is it not recommended to travel outside USA  when you are on H-1B and I-140 filed and approved ? 
 

My PD - July 2014 EB2. I have a pending 485 and got EAD and AP.
I’m a manager in my current company and manage teams in India and the US.
I would like to know how to upgrade to EB1 as International Manager.
Is it required that I work outside the US for one year?
If I visit India and work for 3-4 months, can the accumulated time over 2-3 years be used for upgrading to EB1?
I would also like to know if we can renew EAD from India and keep the current 485 processes on track.
 

Who pays for the I-140 filing fee? Employer or Employee? Do federal regulations mandate payment by the employer? Who pays the attorney fees for the I-140 form per federal regulations? Is it mandatory to be paid by the employer? Who pays for the I-1485 filing fee per federal regulations? Employer or Employee? Any federal mandate I need to know? Who pays for I-485 attorney fees per federal regulations? Is anything mandated in federal regulations?
 

I have been on H1B for almost 5 years and I recently got my PERM approved. My employer will file for I-140 soon. My question is related to priority dates. I saw one of your videos where you explained that the priority date practically belongs to the employee. So does that mean when an employee gets I-140 approval then the employee can change employer at any time and keep the same priority date for the next filing with the new employer?

What happens if an employee leaves or gets laid off after a month of getting i140 approval and the old employer decides to withdraw/revoke the application? In this case, can the new employer use the same priority date or get the new one for the employee? If a new employer gets the new one then what happens when an employee's 6 yr H1B term has finished before new i140 approval comes, does he/she get extension on H1B based on new application?

My priority date is April'14 in EB2. My current employer filed an AOS (I-485, I-765 & I-131) using a prior employer I-140 petition. My EAD (I-765)/AP (I-131) was approved a few weeks ago. My current employer didn't submit I-485J while submitting I-485 application. My current employer PERM was submitted a few months ago.

Questions:

1) Is it safe to use the EAD/AP (or) would you recommend staying in H1B until I-485 is approved?

2)  Will this filing be considered to be fraud/misrepresentation (or) Would you recommend withdrawing my I-485 application?