Good evening. The law does only require a 20 day notice to terminate a month to month lease and I have provided it below for your review. However, if you paid you rent on the 1st of the month, they would need to give you the 20 day notice to vacate 20 days prior to May 1, 2016. They can not take your rent on the 1st and then give you the notice. The notice needs to be given prior to the date which the rent is paid, so you could have defenses to raise against this if it was given on the 1st RCW 59.18.200Tenancy from month to month or for rental period—Termination—Armed Forces exception—Exclusion of children—Conversion to condominium
—Notice.(1)(a) When premises are rented for an indefinite time, with monthly or other periodic rent reserved, such tenancy shall be construed to be a tenancy from month to month, or from period to period on which rent is payable, and shall be terminated by written notice of twenty days or more, preceding the end of any of the months or periods of tenancy, given by either party to the other.(b) Any tenant who is a member of the armed forces, including the national guard and armed forces reserves, or that tenant's spouse or dependant, may terminate a rental agreement
with less than twenty days' notice if the tenant receives reassignment or deployment orders that do not allow a twenty-day notice.(2)(a) Whenever a landlord plans
to change to a policy of excluding children, the landlord shall give a written notice to a tenant at least ninety days before termination of the tenancy to effectuate such change in policy. Such ninety-day notice shall be in lieu of the notice required by subsection (1) of this section. However, if after giving the ninety-day notice the change in policy is delayed, the notice requirements of subsection (1) of this section shall apply unless waived by the tenant.(b) Whenever a landlord plans to change any apartment
or apartments to a condominium form of ownership, the landlord shall provide a written notice to a tenant at least one hundred twenty days before termination of the tenancy, in compliance with RCW 64.34.440(1), to effectuate such change. The one hundred twenty-day notice is in lieu of the notice required in subsection (1) of this section. However, if after providing the one hundred twenty-day notice the change to a condominium form of ownership is delayed, the notice requirements in subsection (1) of this section apply unless waived by the tenant.