The problem is with the issuing authority of your birth certificate. The issuing authority will be involed in resolving the problem. Scan them a...

There was clearly your delivering address issue. Conact USCIS and request resending. At the same time speak to your USPS mail person you are having...

You may do both. At this point no task is too much to clear up your case. Good luck.

N/A at the top of each page. Ensures you and reader looked at every page and provided requested information. If blank, may not be conclusive.

What did your lawyer tell you about the second I751? It's important to find out and take appropriate action to close it out.

Your question(s) are unclear. Who petitioner of the I130? What is the petitioner's immigration status? How is your aunt related to your...

Yes, but the marriage must be in the US within 90 days of FN fiancée arrival.

You wait until PRC is produced and submit the form I90 for card correction.

The average processing times from 5 service centers is 12 months, for the I130. Plus, time for visa to be available of approximately 12 months.

I'm unable to find any immigration issue in your statement. The section of law that may help is not clear. Good luck.