In the body of the letter, immediately state your intention to resign and provide your reasoning, including only positive feelings towards your work experience. Leaving a job isn't easy.In this article, we share tips for writing a short, simple resignation letter and offer examples for you to reference when creating your own. We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company. A Letter of Resignation starts the formal process of leaving the employment of a company. For the most part, these letters are simple and to the point. When the order of resignation is received the member's status will be changed to "Resigned in Good Standing". Please note the process may take up to 90 days. ADOA Human Resources.