Regulations of the Land Registration Article 38

When a letter of authorization, assigning an agent to apply for registration, is equipped with the conditions of specific authorization, the assignor may not affix his/her signature or seal to the application form.The letter of authorization referred to in the preceding paragraph shall provide a detailed statement of the matters assigned and the location, number and the share of rights of the land or improvements assigned for application.
中文原文 土地登記規則第38條
代理申請登記檢附之委託書具備特別授權之要件者,委託人得免於登記申請書內簽名或蓋章。
前項委託書應載明委託事項及委託辦理登記之土地或建物權利之坐落、地號或建號與權利範圍。

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