According to Washington state law, you must give your landlord at least 20 days notice that you will be moving out of the residency and terminating the month to month lease. It sounds as though you fulfilled this requirement. In addition, if your landlord wishes to end your tenancy, the landlord must give you at least 20 days notice. Therefore, you are entitled to more than 14 days notice that you must move out of your place. Your landlord must give you at least 20 days notice to move out, regardless of whether you gave notice first, not 2 weeks notice. Your landlord does not have to provide you with a reason for terminating the tenancy, however. However, there may be additional circumstances in your case that make your situation unique, therefore, you should contact an experienced attorney in Washington. In addition, you should be aware that failing to leave the premises within 20 days of receiving the notice can result in the landlord initiating eviction procedures against you, which can have a negative impact on your credit and ability to rent in the future. In addition, if you stay longer than the period in your notice or if you fail to provide your landlord with written notice of your desire to move out, your landlord may be able to charge you for the following month’s rent. Therefore, it is important to retain a copy of all written correspondences between you and your landlord.