View the list of Sample Business Letters Retirement Party Invitation (Guest) Disclaimer: Be aware that some of these sample letters have legal, financial, or other implications. If you are not sure about the use of any letter, consult with an appropriate professional first. Retirement Party Invitation (Guest) Dear You are cordially invited to attend a party given in honor of (individual) , on his retirement from (name of firm) The party will be held at (location) , on (date) , at(time)o'clock. The company will be presenting (name of individual) with a gift at that time. Be prepared to eat, drink, dance and share in this tribute to a fine individual.