Although its well known that mortgage bankers earned record profits on loan production and secondary marketing last year, a new analysis by Inside Mortgage Trends reveals that mortgage servicing was also highly profitable for the industrys top lenders. A diverse group of 10 top lenders reported a whopping $16.98 billion in net income from mortgage production and secondary marketing last year, after posting a combined loss of $5.79 billion in 2011. Massive repurchase expenses reported by ... [Includes one data chart]