Requirement that you obtain Fannie MaeFannie MaeThis Glossary term Is Created Using Automation in Lower Environments and is used for testing purposes only!! ’s approval before you Rate LockRate LockAgreement between you and the Investor containing the terms of the Lender-Arranged Sale or Multifamily Trading Desk trade of the Mortgage Loan and the MBS terms and conditions relating to the underlying MBS, if applicable, which may be documented via a recorded telephone conversation. a Mortgage LoanMortgage LoanMortgage debt obligation evidenced, or when made will be evidenced, by the Loan Documents, or  a mortgage debt obligation with a Fannie Mae credit enhancement. .