Another option to sell a business with an SBA loan is for the buyer to assume the loan. SBA loans are fully assumable with SBA approval.Assumption of Loan Requirement Letter for disaster loan servicing action request packages. About this document and download. What Is Required to Assume an SBA 504 Loan? The new buyer can apply for assumption of your loan thru your servicing office. You can use SBA's Lender Match tool to connect with a participating SBA lender. You will apply for your loan directly through your lender. AssumeList is a unique real estate tool that allows prospective homebuyers, investors, and agents the ability to find homes for sale with an assumable mortgage. Are SBA 7(a) Loans Assumable?