Documents required for switching jobs on EAD

Hello,
I applied for I-485, EAD and AP in early Oct 2020 by downgrading from EB2 to EB3. Looking at some of the case data on Trackitt, I hope to get EAD approval in a couple of months. I plan to look for another job after April 2021 (180 days from date of filing).

Once I leave my current employer, what documents should I have in my possession to ensure extensions of my EAD, AP and then get green card whenever the final action date becomes current.

Thank you.

A post was merged into an existing topic: EB2 to EB3 Downgrade, Fast Green Card Questions and Answers