You want to give at least a two weeks' notice. Resignation letters shoulf always be polite.They should have no negative or critical feedbacks. In the body of the letter, immediately state your intention to resign and provide your reasoning, including only positive feelings towards your work experience. A resignation letter has three parts: The notification with your end date, the thank you, and the handoff. Use one of our resignation letter templates. Use one of our resignation letter templates. Minnesota is an employment "at will" state. The employee should make sure to include their name, current job position, a brief explanation of why they are resigning, and what date their last day will be. My employer fired me for reasons I think are unfair and this may be a wrongful termination.