A review of your case must be done to determine next steps but the red flags and background are significant and would likely warrant review and delay.

Yes you should indicate that she has an uncle in the US.

Your email and passport should be registered as previous user so best to obtain this information and create new scheduling request accordingly.

Yes it is still possible to be denied but unsure what basis would be.

Yes the I130A is required at time of filing Form I130.

You can correct this at time of interview without issue.

It can take between 30-90 days for review of new documents.

You should review the I864 form instructions for guidance re: evidence.

It depends on the nature of the question that was asked at time of interview whether additional documentation or statement is needed.

Best to have an attorney review your criminal history to determine consequences.