Single family Common Space question WA State

[Devin Cutler]

Okay, I have a question I have a 2 story single-family house that and my wife and I live in the basement it does have its own entrance but is not a duplex. I also rent the spare rooms out upstairs, I have a tenant now claiming I have to give the notice to enter the common space, the kitchen, living room area of the upstairs area could this be true? Should I comply with her demands until I can end her lease? She is on a month to month I am going to give her 20-day notice today.