With credit standards loosening somewhat, some commercial banks are listening to pitches from “private-money” lenders that are searching for warehouse lines, but so far it’s been a case of more smoke than fire. During the subprime meltdown of 2007, banks and Wall Street firms exited the nonprime warehouse sector and have yet to return. According to warehouse consultant Michele Perrin, several banks are willing to make warehouse lines on private-money mortgages, but only up to $5 million per deal ...