Underwater Home by Brent T. White is an absolutely fantastic book. Every home owner with a distressed property should read this book.  To borrow the summary from his own website:

Underwater Home: What Should You  Do if You Owe More on Your Home than It’s Worth?

Underwater Home is both an emotional and practical guide for the underwater homeowner. Professor White explains when it makes financial sense to stay in your underwater home and when it makes sense to get out. He explains your options and gives you the facts that will empower you to make the best decision for your family, free from guilt or fear, and with clarity, confidence, and peace of mind.

I believe in this book so strongly that I will personally buy you a copy if you become a Nest Financial client.