Washington Revised Code Title 84. Property Taxes § 84.64.130. Certified copies of records as evidence

The books and records belonging to the office of county treasurer, certified by said treasurer, shall be deemed prima facie evidence to prove the issuance of any certificate, the sale of any land or lot for taxes, the redemption of the same or payment of taxes thereon. The county treasurer shall, at the expiration of his or her term of office, pay over to his or her successor in office all moneys in his or her hands received for redemption from sale for taxes on real property.