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Yahaira De la Rosa Algarín

Of Counsel

Yahaira De la Rosa-Algarín focuses her practice in the areas of Litigation and Regulatory. She represents clients in general civil and commercial litigation before the Puerto Rico and federal district courts and regulatory matters before the Puerto Rico Energy Bureau. 

Yahaira has handled a wide variety of matters, including local appellate practice, constitutional, consumer class actions, construction, professional responsibility, medical malpractice, aviation, bids & procurement, administrative, energy regulatory, banking, securities litigation, and arbitration. She has experience representing Fortune 500 companies, broker-dealers, and some of the largest businesses in Puerto Rico. 

Prior to joining DLA Piper, Yahaira worked in the Litigation Practice Group of a prominent Puerto Rico firm, where she represented two of the largest U.S. and Puerto Rico brokerage firms in arbitration cases following the Puerto Rico bond market turmoil. She also represented one of the principal U.S. consumer lending institutions before the Puerto Rico Department of Consumer Affairs and state courts. 

Yahaira has extensive local appellate experience, having represented clients successfully before the Puerto Rico Supreme Court in constitutional, property, and professional responsibility cases. 

Previously, Yahaira clerked for the Puerto Rico Supreme Court. During law school in Puerto Rico, she served as a research assistant to Professor Luis Aníbal Avilés-Pagán.

Yahaira obtained law degrees from the University of Cambridge, United Kingdom, the University of Puerto Rico Law School, and the Universitat de Barcelona, making her the only attorney in Puerto Rico with law degrees from the United Kingdom, Spain, and Puerto Rico.

Bar admissionsPuerto Rico
CourtsUnited States District Court for the District of Puerto RicoUnited States Court of Appeals for the First Circuit


    • Member of the team in Lilly del Caribe, Inc. v. Municipio de Autónomo de Carolina, 2022 TSPR 101, a municipal license tax case where the Puerto Rico Supreme Court confirmed an exemption of such tax for the volume of business related to export when originated in a foreign trade zone where the client was operating.
    • Member of the team in Brau, Linares v. E.L.A. de Puerto Rico, 190 D.P.R. 315 (2014), a constitutional law case in which the Puerto Rico Supreme Court held unanimously favored the client.
    • Member of the team in Watchtower Bible v. Mun. Dorado I, 192 D.P.R. 73 (2014), a landmark property law case in which the Puerto Rico Supreme Court recognized the existence of privately owned roads in Puerto Rico. The clients were various hotel developments in Puerto Rico. 
    • Member of the team in In re Wolper, 189 D.P.R, 292 (2013), unauthorized practice of law case where the Puerto Rico Supreme Court found in favor of the clients, out-of-state attorneys that appeared on behalf of their client in a dispute being heard before FINRA.
    • Member of the team in the In re Revisión de Los Términos de Servicio de LUMA (Extensión de Responsabilidad), KLRA202100406, in which the Puerto Rico Court of Appeals confirmed the Puerto Rico Energy Bureau's decision to approve a liability waiver for the client.
    • Member of the team representing the Colegio de Tecnólogos Médicos de Puerto Rico in Lillian Gordo v. Colegio de Tecnólogos Médicos, KLAN201600074, KLAN201600162, in which the Puerto Rico Court of Appeals upheld the constitutionality of the compulsory membership of all medical and clinical laboratory technologists under the Colegio de Tecnólogos Médicos de Puerto Rico. The Puerto Rico Supreme Court denied issuing the writ of certiorari. 
    • Member of the legal team in Jusino Rosario v. Bio-Medical Applications of Arecibo, Inc., KLAN201601825, in which the Puerto Rico Court of Appeals confirmed the trial court decision granting the client’s summary judgment against a $2 million medical malpractice claim. 
  • Spanish
  • English
  • J.D., University of Puerto Rico School of Law
    Magna Cum Laude
  • B.A., Political Sciences and Art History, University of Puerto Rico
    Magna Cum Laude
  • B.A., Law, University of Cambridge


  • "Instrumentos Híbridos Financieros", Revista El Fisco, Revista nº 153, Barcelona, España.