Answer:
the option that will result in a lower monthly payment is the second option that reduces the principal balance by $100,000. The monthly payment will decrease to $2,941.33.
Explanation:
i first prepared an amortization schedule to determine the principal that the neighbor owed after 72 months:
the monthly payment = $3,597.30
principal after 72 months = $548,388
option one:
reducing the interest rate to 4.5% would result in a monthly payment = $3,117.17
option two:
forgiveness of $100,000 of the principle will result in a monthly payment = $2,941.33
option three:
getting a new 15 year mortgage with a 4% interest rate will result in a monthly payment = $4,056.36