Seeking Landlord - Tenant attorney recos for rental on East side

[Jay Dave]

Hello friends, 

I am looking for legal advice on a potential tenant issue for my single-family rental on the East-side (Sammamish Issaquah area). My tenant refuses to honor the 90-day intent to sell notice which I served them well in advance. I am interested in learning about my rights and options as a landlord to terminate my tenant's lease in preparation for putting my property up for sale. Would appreciate recommendations from this group for attorneys / law firms that specialize in such matters as well as suggestions on what I should / could do if you have personal experience with such matters. 

Thank you in advance!