IRS audits don’t encompass misstatements on bank loan documents. That’s undoubtedly the focus of the Vance investigations. Overstatement of asset value are violations of state banking codes.
If I own a $300,000 home I can pretend it's worth $10 million. Who the hell is going to let me use the home as collateral for a $5 million loan without getting a third-party appraisal first?