Here are 3 examples that you can use for resignation letter as Assistant Professor -. Resignation letters should use the formal greeting: "Dear".The first sentence in the letter should state that you are resigning and when. In this article, we explain what a resignation letter is, why they're important, provide steps for writing it, and give you a template and examples. I am writing to formally tender my resignation from my position as an Assistant Professor at Crestwood High School, effective June 20, 2053. Here are 3 examples that you can use for resignation letter as Visiting Assistant Professor -. A. A faculty member or administrator who wishes to resign in good standing shall give written notice to their immediate supervisor. b. Completed application forms are required for all staff positions so that the hiring supervisor can fully and totally evaluate applicants' qualifications. Unit members returning from leave will fill out a. Annual Academic Calendar.