The Compulsory Enforcement Act Article 97

After the buyer pays the full amount of price for the auctioned immovable property, the enforcement court shall issue him/her a certificate attesting the right transfer and other evidentiary documents.
中文原文 強制執行法第97條
拍賣之不動產,買受人繳足價金後,執行法院應發給權利移轉證書及其他書據。

English translation for reference only; the Chinese text prevails. Not legal advice.