Letter of invitation request from the Center for the Study of Citizenship at Wayne State University. In this article, we will cover how to write a professional invitation letter, with tips, samples, and guidance on how to make an impression on every guest.Discover 20 professional and general invitation letter examples, perfect for events like job interviews, networking, parties, and more. SAMPLE LETTER: CEO INVITATION TO LEADERSHIP EVENT. (Date). Dear (Name of Prospective Leadership Giver),. To resolve personal differences with your roommate, follow these steps (to be proactive, fill out a roommate agreement):. 1. You should include the name of the host, formal expression, the event purpose, date, time, and venue, contact details, and RSVP. Suggestions include writing a simple invitation letter from a friend, using a cancellable Agoda booking, or creating a selfinvitation letter. We strongly encourage you to utilize our online or by-mail options. We strongly encourage you to utilize our online or by-mail options.