The formal requisites of a juridical act are governed by the law applicable to the act. However, a juridical act that conforms to the formal requisites provided for in the law of the place where the act was undertaken is also effective; where a juridical act is undertaken at different places, it is effective if it conforms to the formal requisites of the law of any one of the places.

Where an agent’s authority is conferred by a juridical act, the formation of the agency and the relationship between the principal and the agent are governed by the law expressly chosen by them; in the absence of an express choice, by the law of the place with which the agency relationship is most closely connected.

Where an agent undertakes a juridical act in the name of the principal with a third person, as between the principal and the third person, the existence, extent, and effect of an exercise of the agent’s authority are governed by the law as expressly chosen by the principal and the third person; in the absence of an express choice, by the law of the place with which the act undertaken by the agent is most closely connected.

Where an agent undertakes a juridical act in the name of the principal with a third person, as between the third person and the agent, the legal effect of the agent’s acting with, in excess of, or without authority is governed by the applicable law as provided in the preceding Article.