This Agreement supplements the Loan Guarantee Agreement, SBA Form 750, and, if applicable, SBA Form 750B (for shortterm loans), between Lender and SBA. Summary: Lenders must use this form to participate in the SBA Community Advantage loan program.SBA form; 750CA Addendum. The guarantee is contingent upon Lender: 1. Lender must report periodically on the status of all SBA-guaranteed loans in its portfolio, in accordance with Loan Program Requirements. Lender's failure to. Lenders must use this form to participate in the SBA Community Advantage loan program. About this document and download. To fill out this form, first ensure you have all necessary information at hand, including loan details and personal identification. Rural areas not in a city or town with a population of more than 50,000 inhabitants.