One of Wall Street’s top subprime players – Lehman Brothers – has agreed to lend its secondary market muscle to a Chicago predatory lending initiative. Specifically, the investment house’s banking subsidiary, Lehman Brothers Bank, will act as a sponsor for a program launched last week by Neighborhood Housing Services of Chicago. The "Homeownership Preservation Initiative" will provide counseling and intervention for borrowers with predatory mortgages. The program aims to get borrowers out of bad loans