Mortgage-banking profits improved dramatically during the second quarter as production volume surged and servicing held its own, according to data reported by the Mortgage Bankers Association. Participants in the group’s quarterly mortgage-banking performance study reported average pretax income of $2.12 million for the second quarter. That was up handsomely from the average $886,000 companies earned in the first three months of the year. Profits weren’t as strong as they were ...