Legal Question in Real Estate Law in Washington

Unless your lease specifically prohibits it, your landlord can put the home up for lease with you in it. Sometimes, that is a selling point for investment property�that it comes with income generating tenants already in it. That said, you are also correct that your landlord or their real estate agent needs to give you 48 hours advance notice before coming over and showing it.

If I were you, I would write a letter, and send it by certified return receipt to the landlord and copy it to the real estate agent for good measure. In the letter, tell them that the Residential Landlord Tenant Act specifically requires them to provide you with at least 48 hours notice before entering the home. Tell them that you intend to enforce your rights, and so no further showings of the home without proper notice will be allowed. Further instances of coming over without notice will be treated as a breach of your lease agreement, which will cause you to give a 20 day notice to terminate the tenancy and leave.

That ought to grab the landlord and real estate agent's attention. That said, be ready to back up your threats. If you don't, they'll never take you seriously again. So, if you are not prepared to move out, don't add that last bit about giving a 20 day notice, and instead leave it with you considering it a breach of the lease and let them wonder what you'll do to seek compensation.