Wall Street and the Chicago City Council are at loggerheads over a revised ordinance establishing mortgage lender liability for vacant and abandoned buildings caught in the foreclosure process. Tentatively set to take effect Sept. 18, the ordinance addresses the issue of vacant and abandoned foreclosed properties for which ownership is unclear. It holds banks responsible for the upkeep and security of such properties even before they assume title to those properties. In a recent analysis, Moody’s Investors Service warned that such lender liability laws increase mortgage lending transaction costs, which will worsen if...