The nonbank servicers under scrutiny from regulators have rankings at similar levels to banks, according to an analysis by Inside Mortgage Finance. And while there have been concerns about loss mitigation activity by nonbank servicers, they use loan modifications more than banks. Nationstar Mortgage, Ocwen Financial and Walter Investment Management’s Green Tree Servicing were among the 17 servicers that received a rating of at least three stars from Fannie Mae for their performance in 2013, the government-sponsored enterprise disclosed last week. Twelve unnamed servicers received ratings below three stars. Green Tree (four stars) and Nationstar (three) maintained...