Warehouse commitments extended to nonbanks fell 16 percent on a sequential basis in the third quarter to roughly $20.5 billion, according to new figures compiled by Inside Mortgage Finance. Compared to the same period a year earlier, commitments tumbled even more: 20 percent. The drop in commitments mirrored, somewhat, the fall-off in residential originations, which declined almost 19 percent in the third quarter. However, commitments measure how much credit a warehouse lender is willing to provide – not how much it actually provides. Wells Fargo, the nation’s largest warehouse lender, had...[Includes one data chart]