Looking for the right way to invite new people to your church? Click here for a guide complete with free church invitation letter samples.You should include the name of the host, formal expression, the event purpose, date, time, and venue, contact details, and RSVP. Easily customize and download a free Sample Invitation Letter for your Church Fundraising Event. Fill it online and save as a PDF or Word document. Sample Invitation letter. (to be used to invite members to the Generous Giving Presentation Event). Submit an Event or Ad. All submissions must come from, or be connected to, a Minnesota United Methodist church or affiliated organization. These invitation letter templates are just a few of over 1,100 modifiable full-text letters within over 60 categories! We'll detail everything you need to know about how to invite a guest speaker, from the earliest planning stages to drafting a formal speaker invitation letter.