A Washington lease agreement is a document that outlines the terms of a rental between a landlord and a tenant. A lease agreement is a legal document between a landlord who rents property to a tenant in exchange for payment.1. Title and Identification. Clearly label the document as a "Month-to-Month Rental Agreement". Create your free online residential lease agreement. Build a customizable rental agreement you can edit, share and sign online. Docusign templates for rental and lease agreements can be especially valuable for landlords or property managers. Edit, sign, and share washington state single family lease rental agreement online. Any entity may submit their information to self-certify that they are familiar with the City of Renton's PRADU Program. Interest, taxes, and casualty losses not related to your business.