Sharp EL733A EL-733A Operation Manual - Page 64
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WRAP-AROUND MORTGAGES A wrap-around mortgage is a second mortgage on a piece of real property that absorbs the first mortgage. The lender in a wrap-around mortgage usually agrees to assume the payments of the first mortgage and lend an additional sum beyond the Present Value of the first mortgage, in exchange for a periodic payment that is either greater than the payment on the first mortgage or that continues for a longer term. The questions that you need to be able to answer to perform a wrap-around mortgage calculation are three in number: 1. What is the Present Value (remaining balance left to pay) on the first mortgage? Usually this is a TVM calculation. 2. What is the payment that the borrower must make on the new wrap-around mortgage? Usually this is another TVM calculation. 3. What is the yield to the lender on the whole scenario? (This is an ERR calculation) So every wrap-around mortgage problem is at least three problems, involving three cash-flow schedules, the last of which is generally an uneven cash-flow schedule that needs to be solved using IRR. What is interesting about wrap-around mortgages is that the lender usually gets a better return on investment than the interest rate on either the first mortgage or the wrap-around. The payment on the first mortgage may have been calculated based on a 10.5% interest rate, the payment on the wrap may be calculated on a 13.5% rate and the overall rate of return may be 15%. It may seem like that is not possible, but... 124 Example: As a lender looking for a fantastic long term investment, you are approached by a person who wishes to borrow against some property and make just one monthly payment. This potential borrower has a single mortgage, written at 10.5% APR, that calls for $1'678.40 end-of-the-month payments with a $32'000 balloon payment immediately after the last payment, which is 79 months from today. The person would like to borrow an additional $50'000. You agree to write a wrap-around mortgage at 12% for 30 years that has a $15'000 balloon. You will assume the payments of the first mortgage and lend this person an additional $50'000. In exchange, the borrower will make regular monthly payments to you for the next 30 years. What is the payment that you will receive from the borrower each month, and what are you yielding by agreeing to wrap the mortgage? 125