Try to focus on a single compelling reason for your decision. The reason that they want you to resign is that if you resign you won't receive unemployment and ding their unemployment insurance.There isn't a real guideline for what to include in a resignation letter, but typically the briefer the better. Resignation letters are a professional courtesy and a graceful capper to any job. If you want to keep it professional you should avoid the detailed laundry list. Prepare the final paycheck in accordance with Nevada's final pay laws. Draft a termination letter detailing the reasons for termination and the effective date.