Avoid pleasantries such as "To whom it may concern," and try to use first names and titles. Sample letters for sponsorship requests and gift certificate orders are included.Learn to craft an effective sponsorship request letter with our stepbystep guide and template. Boost your chances of securing sponsorship! Sponsor Letter of Financial Support. Instructions: Please have your financial sponsor fill out the information below with his or her full name, relationship. Learn how to raise more money for your nonprofit mission with these expert sponsorship letter tips and templates. Looking to secure sponsorships for your organization? Download these sponsorship letter templates to help you write a successful sponsorship letter!