How to write a resignation letter that's effective immediately? Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template.Start with a two weeks notice letter. This will serve as a formal, written documentation of your intent to leave and your transition timeline. I am writing to formally resign from my position as an apprentice at Strategic Solutions. My last working day will be on June 15, 2053. How to write a resignation letter that's effective immediately? Bereavement leave shall be granted in the event of a death in the immediate family. 11.04.02. Immediate family includes only the following:. Shall result in the immediate withdrawal of the conditional employment offer.