An investment group headed by Starwood Capital Group beat out the Related Companies, Lone Star Funds and Colony Capital to win a 40 percent stake in a company created by bank regulators to contain the assets of Corus Bank. The bank was seized last month by the Federal Deposit Insurance Corporation, and has a $4.5 billion loan portfolio that includes many failed South Florida condominium projects. The winning consortium includes TPG Capital (formerly Texas Pacific Group), Perry Capital and WLR LeFrak, a venture that involves investor Wilbur Ross and real estate company the LeFrak Organization. The winning bidder got the assets for a roughly 40 percent discount in a cash and debt deal.