On that winter night in 2005, the company hosting the gala honored itself with an ice sculpture of its logo. Pinnacle Financial had grown from a single office to a national behemoth generating $6.5 billion in mortgages that year. The $100,000-plus party celebrated the booming division that made loans largely to Hispanic immigrants with little savings. The company even booked rooms for those who imbibed too much.

Keven Connelly, a loan officer who attended the affair, now marvels at those gilded times. At his Pinnacle office in Virginia, colleagues were filling the parking lot with BMWs and at least one Lotus sports car. In its hiring frenzy, the mortgage company turned a busboy into a loan officer whose income zoomed to six figures in a matter of months.

"It was the peak. It was the embodiment of business success," said Connelly. "We underestimated the bubble, even though deep down, we knew it couldn't last forever."