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. with an interest rate that periodically adjusts based on an IndexIndexBasis for determining the Gross Note Rate of an ARM Loan. per the NoteNoteInstrument evidencing a Mortgage Loan obligation, including Form 6010 (series), any other note approved by Fannie Mae, and all applicable addenda, schedules, and exhibits. or Loan DocumentsLoan DocumentsAll documents evidencing, securing, or guaranteeing the debt obligation executed for a Mortgage Loan and approved by Fannie Mae. .