Appraisal Form - HUD-FHA SA HOC GRM HUD/FHA Three and Four-Unit Gross Rent Multiplier form. When using the URAR for three and four unit properties the appraiser is to complete the Gross Rent Multiplier calculations and analysis. If the FNMA 1025 - Small Residential Income Property Appraisal Report form is used, then completion of the GRM section on the form is acceptable. | 
