Unsolicited requests are unlikely to be of help. But try anyways.

Clerical error contact USCIS to make corrections.

Have you properly and timely filed for EAD extension. If not? Why not?

You have not stated the feedback from your Congressperson or Ombudsman. It's important to be ready for the lawsuit. However, get all records/proof...

6 months extension is standard duration extension. However, it varies from applicant to applicant. Therefore, sometimes it may be less than 6...

Yes, you can renew DACA while adjustment of status is in process.

Yes, your EAD is C9 if you adjusted status from B-2.

You can use P.O. Box for mailing, but you must report physical address as well to USCIS. File timely AR-11 whenever any of the addressees change.

Yes, begin by filing I-130 and I-130A now. USCIS will notify you when to file I-864.

The question is if you can apply for political asylum after overstaying my visa. The anwer is yes but within the validity of your 1-94.