H1 and H4 renewal

Some questions for all 老师:

I submitted 140 and 485 via attorney, and both pending now. It's time to renew almost all documents since they all expire on September. I know H-1 has to be submitted by attorney, how about AP, EAD? Can it be DIY? If so, anyone know how?

Do I need to renew my EAD since I need to renew H-1B anyway?

How far advance should I start for renewing of these documents? (H1-B, EAD, Advanced parole)

Any advice helps!

Thank you a lot!!!