Most mortgage lenders expect profit margins to remain steady in coming months, but more of them are bracing for reduced earnings and fewer anticipate increases than in the past, according to results from a Fannie Mae survey released this week. Just over half (51 percent) of the 185 participants said they expect profit margins on loan production activity to be unchanged in the next three months. But a third of the lenders predicted tighter margins, up from 29 percent in the previous survey, mostly because of ...