5.55%-6.15% depending on if you need down payment assistance. 5.55% = no assistance, 5.85% = 2% of sales price grant for downpayment, 6.15% = 4% assistance. THDA is used in conjunction with another loan product so you will have to qualify for the loan of your choice and then THDA can kick in with the interest rate/down payment assistance you need.
Mortgage Investors Group at 423-899-2887 does more THDA than any other lender in TN. If it can be done. They should be able to do it (I am not affiliated with MIG in any way).