Lehman Brothers collapsed 10 years ago, helping send the country into the Great Recession. But in the years before it collapsed, the firm doled out at least $1.1 billion in loans for Las Vegas real estate projects. Lehman backed the Fontainebleau hotel, condo towers and other deals. Most of the properties linked to Lehman went into foreclosure, and several construction projects were abruptly halted or never got started.