This comprehensive guide aims to shed light on the key aspects of tenant rights in Contra Costa County, balancing the interests of property owners and tenants. STEP 1: Learn About Your.Rights and Find Help. Authority agrees to rent to Tenant the dwelling unit located at. Forms ; ADOPT-230, Adoption Expenses ; ADOPT-310, Contact After Adoption Agreement ; ADOPT-315, Request to: Enforce, Change, End Contact After Adoption Agreement. Customer: I am a resident in contra costa county, ca. My lease is ending in a week and I am still unable to find a place to move to.