ESTA entrant cannot change their status to any other non-immigrant status and cannot adjust. There is only one exception: if you marry a US citizen...

DT or 212d5 parole qualifies as "parole" for adjustment of status based on a marriage to a US citizen.

Yes, they can do it, but they need to obtain an advance parole first.

The error was done on a previous application it seems; you can mention it during the interview, it would be good to have a copy of your dad's birth...

You, of course, can and should refile I 751 (in fact, there is no limit as to how many I 751 one can file), but traveling is not advised in case...

Most likely, you will need to submit form I 765 under C(11) category. You can find the form and instructions at uscis.gov.

If you already received a green card, then yes, your visas are invalid. But you should apply for a re-entry permit if you know you will be staying...

Yes, you should if the instructions direct you to do so. I suggest making copies of all the pages of this document prior to returning it. Good luck!

USCIS routinely demands that you present proof that your tax returns were actually filed. So, why don't you send both: tax returns and tax...

If you do not respond to an RFE, your N 400 will have to be denied. But in the future, prepare to still address the issue of real marriage (even if...