Real Estate Brokerage Management Act Article 18

The permit of a brokerage agency, the documents related to the brokering or sales agency, and the brokers’ certificates should be displayed in an obvious place in the business office. A franchised agency should make its franchise noted.
中文原文 不動產經紀業管理條例第18條
經紀業應將其仲介或代銷相關證照及許可文件連同經紀人證書揭示於營業處所明顯之處;其為加盟經營者,應併標明之。

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