On September 24, Freddie Mac issued Bulletin 2013-18, which updates and revises certain selling and servicing requirements. Effective October 1, 2013, Freddie Mac will require that seller/servicers (i) provide third-party vendors retained to perform functions relating to origination and servicing of mortgages with training on fraud prevention, detection, and reporting as outlined in the Seller/Servicer Guide, (ii) maintain written procedures for reporting fraud or possible fraud in connection with a mortgage sold to or serviced for Freddie Mac, and (iii) report to Freddie Mac when they first know or suspect an incident of fraud may have occurred in connection with a mortgage sold to or serviced for Freddie Mac, rather than when they have a reasonable belief of such an incident. With regard to selling requirements, the bulletin, among other things, (i) updates asset documentation requirements, including the requirements for verification of large deposits, (ii) updates requirements for underwriting borrowers on temporary leave, (iii) updates certain relief refinance requirements, and (iv) retires Investor Feature Identifiers for temporary subsidy buydown mortgages with special characteristics.