You may file for your parents LPR status. Because they are immediate relatives any overstay is forgiven and it is not necessary to file the request...

To state that you were married before and NOT attach a dissolution for that marriage would indicate that your current marriage is not valid and you...

Yes. The I-551 stamp is evidence that you are an LPR. Provided you are not inadmissible for any other reason you may travel with the stamp.

File a FOIA with the USCIS for your A File.

Based on the information provided you may renew your EAD.

Yes you can begin working. HOWEVER, failure to pay taxes is grounds to revoke your visa. Make sure that you are actively seeking a SSN and that you...

You may be granted an I-130 for your wife but until you can show a permanent residence in the USA she will not be granted LPR status.

Supporting documentation depends on a persons individual circumstances. To provide you with suggested supporting documentation would require a...

Humanitarian parole is a discretionary relief. It must be shown that the beneficiary(s) have a need that is specific to themselves and not general...

Whether your wife has a valid visa depends on the status of your visa. Sounds like the service wants documentation to show that you are in compliance.