An employer has to want to hire you for a job that qualifies for a visa. A sample letter offering a job contingent upon the results of a background check or other criteria.As part of the interview I need to share a job offer letter. My employer wants to write it but needs to know what all should go inside the letter. Fill out Form I-765. Attach any required supporting documents. The job offer letter should be on company letterhead and state the position you are being offered, your start date, salary and benefits. Completed applications must include all required sections filled out (i.e. If you filled out Form I765 incorrectly, forgot to sign it, or didn't send the correct supporting documents, USCIS may reject your application. A job offer which you have not accepted will be virtually valueless for the visa application.