The only “net worth” my mortgage bank cared about was my liquid assets — checking and savings accounts, and investment funds outside retirement accounts.
And I am sure you had to provide statements.
If you said you had a million in assets...and the bank discovered that during the process, my guess is the bank would not be happy.
Is it a “crime.” Only if they can prove fraud. It would be a cause for withdrawing any offer or foreclosing on an existing loan.
The issue here is that I think I read they were using the “inflated valuations” to get some sort of tax relief. I am not sure how that works—but fraud on a state or fed document is a bad thing.
But, as I wrote before, the three people in question might have their signatures on the docs, but I doubt very much they knew the valuations, instructed anyone to lie, or files an obviously false document.
But we all know that if you are not 100% accurate on government documents, they can nail you to the wall.
Some banks didn't even care about that prior to the 2008 GFC. I am old enough to remember NINJA loans..