Hello and thank you for the opportunity to assist you. There may be a slight delay between your follow ups and my replies as I am typing out my answer. Please remember that this is general information only, not legal advice, and no attorney-client relationship is formed.

The code is unclear here. It states that the window of time must specify the earliest and latest entry, but that is it. Therefore, we look to legislative intent. In construing a statute, the court's objective is to determine the legislature's intent. "If the statute's meaning is plain on its face, then the court must give effect to that plain meaning as an expression of legislative intent." State, Dept. of Ecology v. Campbell & Gwinn, 43 P. 3d 4 - Wash: Supreme Court 2002.

Here, the legislative intent is to ensure that the landlord does not abuse the tenant by continually entering at odd hours and not giving tenant the ability to enjoy the property. Ergo, it is arguable that the window should be as short as reasonably needed for the kind of inspection. Since the inspection itself is 10 minutes long, the notice should be to the point and not "three days," since the point of the statute is to protect tenant's right to privacy.

Ergo, the established rule of thumb is to give an actual hour of when someone would be entering, or a window of three hours. Anything more can be deemed unreasonable, arguably.

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