How to write a resignation letter that's effective immediately? First, you need to immediately and permanently resign as CEO and transition this leadership role to capable hands.It's time to quit the job, and you're not giving two weeks' notice. Here's how to politely write a resignation letter, effective immediately. The document was among a series of files that were unsealed Monday as part of a lawsuit . A member of the Chippewa County Board of Supervisors is calling for Chippewa County Sheriff Travis Hakes' immediate resignation.