Welcome to Washington State Courts. If you disagree with an individual or a company, and informal efforts to resolve your dispute fail, you should write a demand letter.The law requires that month-to-month tenants give landlords at least 20 days written notice before vacating their units. In this article, we cover everything you need to know about writing a resignation letter without notice and provide an example to get you started. The Court may also set a Noncompliance hearing. Fill out a Notice of Appearance. Washington Forms Online. An employer must give seven calendar days' written notice to an employee who is being reverted during a trial service period. If an employee resigns 3 weeks after confirmation letter has been issued but did not return the signed letter, is the employee required to serve notice period?