Servicers are increasingly executing their clean-up call options on vintage non-agency MBS, paying off investors at par and realizing profits by liquidating real estate owned properties. This year has been the most active year for clean-up calls on non-agency MBS since 2007, according to analysts at Bank of America Merrill Lynch. And that’s before the largest servicer of subprime MBS has taken any significant action on clean-up calls. In August, Ocwen Financial announced...