Question on EAD / AP

[guptatarun]

Need suggestions from our experts here and then I will reach out to lawyers to take it forward for final steps:

Some background to explain my situation:

• I am currently on a L1A visa valid till Jan 2022 and my spouse works on a L2 EAD valid till Apr 2021
• As L2 EAD expires in Apr 2021 we were planning to file an extension in Oct 2020
• A month ago employer of my spouse started the process of filing a cap exempt H1 with uncertainty/dependency on EAD extensions
• We got current on Oct VB and will be filing our i485 in next few weeks. We will be filing for i765(EAD) for myself and spouse

Now the questions:

1. Can we file L2 EAD extension and i485 EAD in parallel?
2. If we can can it impact our 485 and GC applications adversely in any way ?
3. Is there still any reason we should get H1B processed for my spouse or should simply ask the employer to stop the process as it has still not been filed and is in internal process
4. Should we get AP as well or we can skip it as our visa is valid till Jan 2022 anyways