@Yu L. To answer your question, the Note is written at the current AFR and that stands for the whole term. Its not an "adjustable rate". I will produce an amort schedule with the fixed 1.95% interest rate.
In reviewing other comments as well, I agree that the $2200 rent is quite low for a $450k property. Of course I don't know your market, but the numbers don't work unless you are buying it cheap and as you said, look to do the repairs and then flip it for your profits.To hold it does not seem to make the most sense. How are you funding the $80,000? I just can't make the numbers work on this deal....
In contrast, we just had an offer accepted on a small 10-unit building with NOI of $28,200 (using the 50% rule), and we are paying $185,000 for it, with $15,000 down and the seller carrying a Note for $173,500 at 1.95%. Needs $60,000 in rehab. The ARV is estimated to be $250K, but using the income method, it might be closer to $300k. The payment on this Note is $1150 per month with a balloon after 9 years of $56,000. It does need approx $60,000 in rehab, so we will bring in $90,000 in Private investor funds at purchase, ARV is $250K. Essentially we paid the seller full market value (less repairs) in exchange for great terms over 9 years. Our payment to the seller is right at 50% of the NET monthly cash flow (after the 50% rule).
GROSS RENTS = $4700, Less 50% rule = $2,350 NOI (Monthly)
Private Lender 1st = $750 interest only - could roll to a P & I refinance down the road.
Seller carry 2nd = $1150 (@1.95% interest) rapid principal paydown.
Net Monthly Cash flow = $450 - or $5400 annually after all debt service and expenses.
Maybe my numbers will vary a bit from this once we get into it, but our projections are fairly conservative, and we plan to renovate and hold this property for at least 9 years, then worst case scenario we will owe the $90k first and $56k 2nd, and if there's no appreciation the building would still be worth at least $250k. Any appreciation is gravy. Also we hope to complete the rehab on $50,000 and built in an extra $10k as a buffer. We have learned to run our numbers always based on worst-case scenarios. Been there, done that on the "pie in the sky" projections.