24 CFR §291.545

1. (a)Purchase using conventional financing. If the law enforcement officer, teacher, or firefighter/emergency medical technician uses conventional financing to purchase a home under the GNND Sales Program, the amount of the mortgage may not exceed the discounted sales price of the home.
2. (b)Purchase with FHA-insured mortgage.
   1. (1)A law enforcement officer, teacher, or firefighter/emergency medical technician using an FHA-insured mortgage to finance purchase of the home may finance reasonable and customary closing costs with the FHA-insured mortgage.
   2. (2)The amount of the FHA-insured mortgage may not exceed the discounted sales price of the home plus:
      1. (i)The closing costs; and
      2. (ii)The costs of rehabilitating and/or improving the home, where purchase of the home is being financed with an FHA-insured 203(k) rehabilitation loan (see 24 CFR part 203).
3. (c)Closing costs and selling broker's commissions. In no event will HUD pay a buyer's closing costs on the purchase of a property or a selling broker's commission through the GNND Sales Program.