Fannie Mae’s process for paying for servicer property inspections has “significant control deficiencies,” prompting the official watchdog of the Federal Housing Finance Agency to conclude that additional agency oversight is required, according to a new report. The audit by the FHFA’s Office of Inspector General estimated that some 9.5 percent of claims for pre-foreclosure property inspections in 2011 and 2012 resulted in $5 million in overpayments by Fannie. GSE guidelines require servicers to perform a monthly inspection on all delinquent properties.