Record low interest rates and loosened underwriting guidelines have induced strong refinance activity during the first half of 2012. Industry participants agree that the refi boom will continue through the third quarter of 2012, but then predictions get hazy. During Wells Fargo’s earnings presentation for the second quarter last week, Timothy Sloan, a senior executive vice president and CFO at the bank, downplayed suggestions that refi activity has declined this month compared with June. “The business is good and we’re optimistic about it,” he said. “Very optimistic,” added...