As residential lending goes, so goes the fortunes of the Mortgage Bankers Association, the residential finance industry’s largest trade organization. MBA saw its revenues decline by 8.2 percent to $62.0 million in fiscal 2017 as its investment income plunged to $719,773 from $7.9 million the year prior, according to the trade group’s form 990 tax return. MBA’s “profit” (revenue less expenses) declined by 33.5 percent in FY 2017 to $12.7 million, a drop of $6.5 million ...