P.R. Laws Ap. tit. 32A, § III, Rule 27.2
A party desiring to take the deposition of any person upon oral examination shall give notice in writing, at least ten (10) days in advance, to every other party to the action. The notice shall state the time and place for taking the deposition and the name and address of each person to be examined, if known, and, if the name is not known, a general description sufficient to identify him or the particular class or group to which he belongs. The notice to a party deponent may be accompanied by a request made in compliance with Rule 31 for the production of documents and tangible things. If the deponent is not one of the parties and a subpoena for the production of documents and tangible things at the taking of the deposition is to be served on him, the designation of these documents or things shall be included in the notice to the parties. The place where the examination is to be held and the subpoena for the taking of the deposition are subject to the provisions of Rule 40.4.