The second notice is likely in error and case will be scheduled for interview.

This would be best discussed in consultation setting with an attorney as international adoption is complex.

Previous criminal record and history.

Depends on your sons age whether he can petition for you.

A breakdown of marriage does not necessarily mean fraud.

Once you have citizenship, it should be revoked without proof of fraud.

This is still possible with sufficient income in last year.

The BC should be corrected to reflect accurate name.

The criminal history will likely impact subsequent application.

Yes this is not advisable given case history.