The interview admissions may be scrutinized if you had children at that time. Consult with an attorney for guidance.

It may impact future visa entry so best to determine if charges are pressed. Consult with an attorney for guidance.

You will need to divorce first spouse to remarry.

Best to consult with an attorney for guidance.

Your parents may file a reentry permit for this purpose.

Contact the criminal court for a copy of the certified court disposition.

Yes likely if the fiancé does not have a visitor visa to the US.

Best to have an attorney review the correspondence with USCIS.

Yes you should answer affirmatively.

With your previous immigration court history, best to consult with an attorney for guidance.