Fannie Mae and Freddie Mac recently released more details on requirements for participating in their new refinance option for loans originated after Oct. 1. This option allows borrowers with high loan-to-value ratios to refinance. While the official start date is next month, the GSEs said that a minimum of 15 months must have passed between the note date of the existing loan and the start of the new loan. For example, if the mortgage is originated in October 2017, the note date of the new loan can be no earlier than February 2019. To participate, the loans must be owned or securitized by Fannie or Freddie and can include loans that are part of its risk-sharing structure.