Information provided on the CMS100 application is used to determine your eligibility for appointment to a State of Illinois position title. This is a typical example of an Employee Guarantor Form.Equal Employment Opportunity Employer. We will accept one of the following three documents for proof of wages: a. 1. Fill in the applicant's name, position applied for, and department. This document contains forms for a guarantor to fill out in order to guarantee an employee's employment. Form I-9 - Required. All new employees must complete an I-9 form. Discover Pinterest's best ideas and inspiration for Guarantor form for employment. Get inspired and try out new things.