Fill out all applicable spaces in the information grid at the top of the front page of the Guarantee. SBA Lenders may use this form.This Secondary Participation Guaranty Agreement is a contract that details the terms and conditions of the sale of the guaranteed portion of an SBA loan. Resources for Oakland businesses, nonprofits and workers to plan, prepare and respond to Coronavirus 2019 (COVID19). A loan guarantee agreement is a document that ensures repayment of a business or personal loan if the borrower defaults on their obligations. What Is a Guarantor? In the context of business loans, a guarantor is a person who agrees to repay the loan if the business is unable to do so. SBA Form 148 (Unconditional Guarantee) and SBA Form 148L (Limited Guarantee) are the standard documents for providing a guaranty on an SBA loan. IBank's Small Business Finance Center features a loan guarantee program designed to assist small businesses that experience capital access barriers. This Agreement supplements the Loan Guarantee Agreement, SBA Form 750, and, if applicable, SBA Form 750B (for shortterm loans), between Lender and SBA.