Quote from austinp:
<i>"If the defaulting mortgagee has other assets, the lender can strive to collect. If there are no assets, the defaulter gets "1099-ed", then has to deal with the IRS for income tax due. Bankruptcy would be the only true relief."</i>
Big picture: the majority of people do not care about future consequences.
Here's what they know for sure: mtg payments cannot be made when food, clothing and transportation are taken care of. Deal with survival today, and walk away. That's the first step. Whatever happens next will be dealt with as it comes.
All of the other consequences may hurt later, but the masses do not care about future problems when faced with immediate crisis. They will walk away today, then resign to face comes what may.
Net result is a mass exodus just getting started. See other real estate bubbles in the past for what lies ahead. Threats of asset seizure and IRS issues are moot... they will not stop the majority from abandoning houses which are upside-down. Banks will still be saddled with a glut of overpriced houses while seeking recourse from people with nil assets to seize.
That's the reality
When people have no other assets and abandon their homes, I don't view that as "walking away"... that's more like "foreclosure" (even if the bank hasn't kicked them out yet, they will in the near future.)
"Walking away" is more like when someone HAS other assets, but doesn't want to honor his mortgage because the house is worth less than the mortgage amount.