Final answer:
The couple may be unable to pay off their mortgage due to the terms specified in the mortgage note.
Step-by-step explanation:
This situation appears to involve a legal issue. The couple entered into a contract with the lender when they obtained the mortgage loan. This contract, also known as a mortgage note, specifies the terms and conditions of the loan, including the time frame for repayment. If the lender is refusing to allow the couple to pay off the mortgage loan early, it is likely because the contract does not allow for early repayment or there may be penalties for doing so.
In some cases, lenders include clauses in mortgage notes that prevent borrowers from paying off the loan early, especially if it is a fixed-rate mortgage. This is because lenders earn interest over the life of the loan, and early repayment could result in them receiving less interest than anticipated. These clauses are commonly known as prepayment penalties.
It is important for the couple to review their mortgage note and consult with a legal professional to fully understand their rights and obligations. They may be able to negotiate with the lender or explore other options for paying off the mortgage loan early.