P.R. Laws Ap. tit. 32A, § III, Rule 25.1
Within Puerto Rico, within the United States, or within any territory or possession subject to the dominion or jurisdiction thereof, depositions shall be taken before an officer authorized to administer oaths by the laws of Puerto Rico or of the place where the examination is held, or before a person appointed by the court in which the action is pending. A person so appointed has power to administer oaths, take testimony, and preside over the taking of depositions. It is not necessary for the person administering the oath to remain at the place where the deposition is to be taken after the deponent has been sworn.
When a person through an affidavit certifies before the court that he lacks the means to meet the expense of taking a deposition, the court may order that the deposition be taken under such conditions as it deems appropriate.