Agreement between you and the Investor InvestorMBS Investor for an MBS Mortgage Loan, or Fannie Mae for a Cash Mortgage Loan. containing the terms of the Lender-Arranged Sale Lender-Arranged SaleMBS sold to the Lender and held on its balance sheet or delivered to a Third Party MBS Investor. or Multifamily Trading Desk Multifamily Trading DeskTeam that: purchases and trades Cash Mortgage Loans and MBS Mortgage Loans for Fannie Mae's own account; and can be contacted at (888) 889-1118. trade of the Mortgage Loan Mortgage 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. and the MBS MBSMortgage-Backed Security terms and conditions relating to the underlying MBS MBSMortgage-Backed Security , if applicable, which may be documented via a recorded telephone conversation.