P.R. Laws tit. 10, § 1183
It shall be the duty of brokers:
(1) To make certain of the identity and of the legal capacity to contract of the persons in whose business they intervene, and in the proper case, of the genuineness of the signatures of the contracting parties.
When such contracting parties cannot freely dispose of their property, brokers shall not lend their aid unless due authorization under the law is previously obtained.
(2) To propose deals with exactness, precision, and clearness. They shall abstain from suppositions which may lead the contracting parties into error.
(3) To preserve secrecy in all matters concerning such business as they may transact, and not to reveal the names of such persons as may entrust them with said business, except where the law or the nature of the transactions require it, or where the interested parties consent to the disclosure of their names.
(4) To issue, at the expense of such interested parties as may request them, certifications of the respective entries of their contracts.
History —Commerce Code, 1932, § 64.