Attorney Regulation Act Article 25

At least one resident attorney at the branch law firm mentioned in the preceding Article shall join the local bar association in the place where such branch law firm is located as its general member; if there is no local bar association in the place where such branch law firm is located, such attorney shall join a neighboring local bar association at his/her option.The resident attorney shall not establish other law firms or act as the resident attorney of other branch law firms.An employed attorney shall be considered to work for the law firm employing him/her, except for the situation specified in Paragraph 1 hereof.
中文原文 律師法第25條
前條分事務所應有一名以上常駐律師加入分事務所所在地地方律師公會,為其一般會員;分事務所所在地無地方律師公會者,應擇一鄰近地方律師公會入會。
前項常駐律師,不得再設其他事務所或為其他分事務所之常駐律師。
受僱律師除第一項情形外,應以僱用律師之事務所為其事務所。

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