The Louisiana USDA home loan can be used to purchase a home buyer's primary residence. Single family investment properties and multi family investment properties are not eligible under the program. Additionally, commercial properties are not allowed as well. The program is specifically designed for owner-occupied single-family properties. The USDA Single Family Loan Program also has a restriction on home buyers owning more than one property. For example, if a would-be home buyer owns their current home and wants to move and buy a new one they must sell the existing one first.