Already a major player in the subprime securitization market, investment bank Lehman Brothers appears set to heighten its profile in the origination market as well. As Inside B&C Lending went to press, rumors were swirling that Lehman had exercised an option to purchase 75 percent of the outstanding stock of California-based originator BNC Mortgage. A Lehman subsidiary was part of the investment group, headed by company management, which