Assumption of Loan Requirement Letter for disaster loan servicing action request packages. About this document and download.Can An SBA 504 Loan Be Assumed? Many types of loans are not assumable. I am the owner, or the duly authorized representative of the owner, of the Loan Pool or Guaranteed Interest Certificate. Buyer's Assumption Obligation in Asset Sales. 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. (Supply the certificate interest rate from the front of the certificate. For fixed rate loans fill in the coupon rate. Fortunately for borrowers, SBA loans, including the SBA 7(a) loan , are fully assumable with SBA approval.