Washington state, city of Seattle:
I had a lease which ran for a year and then converted to month to month. I paid first and last month's rent when I moved in, and always paid my ongoing monthly rent on time.
In late July, I paid my August rent. Shortly after that, and before August 1, I gave my landlord notice that I would be moving out by the end of August. The landlord claims that my notice is effective the end of September, and that I owe rent for the month of September, which she collected as last month's rent when I moved in. Is that really the case? My understanding is that per Washington state law (RCW 59.18.200(1)(a).) I only had to give 20 days notice before my rental period was complete. If I am right, I gave notice almost two weeks before I was required in order to have my rent obligation complete at the end of August. So, who is right? Am I entitled to one month's rent?