Underwriting standards for subprime mortgages and borrower demand for such loans remained unchanged in the third quarter of 2012 compared with the previous quarter, according to the Federal Reserves senior loan-officer opinion survey on bank lending practices. While 64 banks surveyed reported offering prime mortgages, only four reported offering subprime mortgages and 23 reported offering nontraditional mortgages. Underwriting and demand for nontraditional mortgages ... [Includes two briefs]