This is off reversemortgageguide.org.
A reverse mortgage is a low-interest loan for senior homeowners that uses a home's equity as collateral. The loan amount is a percentage of the home's value determined by the age of the youngest homeowner. The loan does not have to be repaid until the last surviving homeowner permanently moves out of the property or passes away. At that time, the estate has approximately 12 months to repay the balance of the reverse mortgage or sell the home to pay off the balance. All remaining equity is inherited by the estate. The estate is not liable if the home sells for less than the balance of the reverse mortgage.
In the event of death or in the event that the home ceases to be the primary residence, the homeowner's estate can choose to convert the reverse mortgage into a traditional mortgage to keep the house or else sell the home to pay the balance (the cash borrowed, interest, and fees).
If the equity in the home is worth more than the balance of the loan, the remaining equity belongs to the heirs. No other assets are affected by a reverse mortgage. For example, investments, second homes, cars, and other valuable possessions cannot be taken from the estate to pay off the reverse mortgage.
If the sale of the home is not enough to pay off the reverse mortgage, the lender must take a loss and request reimbursement from the FHA.