Browse Contra Costa County, CA real estate. The following is a list of some documents that may be recorded if they meet all requirements, and a description or definition of each document.Definition of annual income, how the housing authority verifies income – overview, information regarding verification of specific income type. Can I mail in or submit a sealed bid for a property in the public auction sale? No. The tax sale will be conducted online. 6. When you find a new place to rent, you and your new landlord must fill out the Request for Tenancy Approval (RTA) form in your packet and send it to us. When you find a new place to rent, you and your new landlord must fill out the Request for Tenancy Approval (RTA) form in your packet and send it to us. Sellers who need help in completing their disclosure obligations should consult with their own qualified,. Purchase complete with top-tier interior furniture. The County of Contra Costa, California, held a tax sale in which it offered for sale a vacant piece of property located in the city of El Cerrito.