Chase Home Finance headed a parade of large lenders reporting substantial increases in new loan production during the second quarter, maintaining its place as the top lender in an increasingly concentrated marketplace. The New Jersey-based mortgage operation, which includes several Chase-affiliated lending units, reported $54.0 billion in second-quarter production. That was a hefty 69.4 percent increase over the already strong first quarter, and brought the company’s year-to-date volume to $85.88 billion – more than it