It depends on the nature of the conviction.

Yes she may attempt entry on the visitor visa.

This should not present a problem.

You may use the search tool to find an attorney that can assist.

No this does not seem plausible but contact clerks office for guidance.

Difficult to say. Wait for correspondence from USCIS.

No you may relocate but must notify USCIS of changed address.

You will need to disclose payment of taxes and provide explanation for why this wasn’t done.

Check USCIS processing times as there are long delays.

It depends on nature of offense. Consult with an attorney for guidance.