The loan is for $336K, the home was puchased for $420K. Some of the other information like closing cost may be incorrect. It’s hard to remember all the details. I am sure about the 3.75% and the buy down of a .25%. I also know that buying down the rate saved me a couple thousand dollars during the 5 year period if I pay interest only. The down payment came from a heloc from primary residence, but has since been paid off.