In the United States, a mortgage note (also known as a real estate lien note, borrower's note) is a promissory note secured by a specified mortgage loan.
Mortgage notes are a written promise to repay a specified sum of money plus interest at a specified rate and length of time to fulfill the promise. While the mortgage deed or contract itself hypothecates or imposes a lien on the title to real property as security for a loan, the mortgage note states the amount of debt and the rate of interest, and obligates the borrower, who signs the note, personally for repayment. In foreclosure proceedings in certain jurisdictions, borrowers may require the foreclosing party to produce the note as evidence that they are the true owners of the debt.[1]