The Office of Multifamily Housing published Mortgagee Letter 2021-26, which announces the required use of the FHA Catalyst: Multifamily Applications Module effective Dec. 10, 2021, for all electronic MAP application submissions. MAP Lenders can request access to the FHA Catalyst: Multifamily Applications Module by completing the FHA Catalyst Lender Access Request Form and emailing the completed form to FHACatalystMF@hud.gov. Lenders can also download the form and get more information on the FHA Catalyst: Multifamily Applications Module webpage.