Just a guess, but FRM (fixed rate mortgage), first developed by the Federal Housing Administration (FHA).
i need help with fp 101
The type of mortgage loan that has a fixed rate, fixed term, and fixed payment is known as a Fixed-Rate Mortgage (FRM). This type of loan offers stability and predictability as the interest rate remains constant throughout the term of the loan. The term is typically 15 or 30 years, meaning the borrower will have a fixed number of years to pay off the loan. Since the interest rate and the monthly payment remain the same, it becomes easier for borrowers to plan their budgets and manage their finances.
