Some key points:
* The profits are being split among Richmond and a private investment firm named "Mortgage Resolution Partners, LLC".
* Seizing a mortgage for less than its fair market value is blatantly unconstitutional. The argument that the value of an underwater mortgage in repayment is worth less than the house is so obviously wrong, I have a hard time believing Richmond officials honestly buy it. A mortgage that is on track to be repaid is undoubtedly worth close to the future value of repayment, even if the house is worth $0.
* Big banks do not actually own most mortgages in general. So this is not a scheme to rob big banks, although Mortgage Resolution Partners, LLC certainly wants to spin it that way.
* Almost all housing mortgages are merely serviced by banks but owned predominantly by entites such as "state and local governments, hospitals, Fannie, Freddie, and to a lesser degree, foundations and endowments". The banks have a legal obligation to protect these mortgages, of course.
* Many of these loans are current--they're not distressed mortgages at all! They also plan to steer clear of houses with liens. Naked Capitalism comments that the plan only works financially if they go after the mortgages of those that need help the least.
In short, this is a transfer of wealth from a diverse array of investors to the city of Richmond and a bunch of investment banker types--theft under the cover of populist outrage. It would also severely damage the market for future homeowners in Richmond, anyone who wants to sell their home, anyone who wants to refinance... Oh, it's also a threat to fundemental notions of private property, rule of law, and market capitalism, but distressingly few people still care about that. The bit I want to emphasize is that it's Prince John pretending to be Robin Hood.