María D. Bertólez Elvira

Limited Member

Ms. Bertólez joined PMA’s litigation practice group in 1999 and became a Partner in 2004.  She represents a diverse group of clients in an array of civil and commercial litigation matters, including but not limited to, employment litigation cases, antitrust litigation and compliance, trademark litigation, and the protection of intangible property rights, consumer affairs litigation and related compliance issues and disputes before the Department of Consumer Affairs. Ms. Bertólez has also litigated and given advice on constitutional federal claims, eminent domain litigation, and commercial contract disputes.

Place of birth:

San Juan, PR


  • University of Puerto Rico Law School, San Juan, PR
    1996 J.D.
  • University of Pennsylvania, Philadelphia, PA
    1996 B.A.

Bar Admissions:

  • Commonwealth of Puerto Rico, 2000
  • U.S. District Court for the District of Puerto Rico, 2000
  • U.S. Court of Appeals for the First Circuit, 2006

Practice Areas:

Professional Associations and Memberships:

  • Puerto Rico Bar Association 
  • Federal Bar Association
  • American Bar Association


  • Successfully represented various multinational companies in Puerto Rico such as ICI Paints Inc., Coca Cola Puerto Rico Bottlers, Marshalls, and KB Toys, Inc. in trademark, antitrust, consumer affairs, employment and commercial contractual disputes.
  • Formed part of the legal team that represented a group of supermarket chains in a highly publicized antitrust claim challenging the adquisition by Walmart of Amigo, an important supermarket chain in Puerto Rico, before the state and federal court, the Puerto Rico Justice Department and the Federal Trade Commission. These efforts resulted in Walmart being required to divest several of the Amigo supermarket stores acquired.
  • Represents Banco Popular de Puerto Rico in a highly publicized claim filed by Ticket Center Inc. for alleged violations of antitrust laws.
  • Represents the Industria Lechera de Puerto Rico Inc. in a highly publicized federal claim filed by the fresh milk processing plants in Puerto Rico against the government and the Puerto Rico dairy farmers challenging the constitutionality of the milk industry laws and regulations enforced by the Puerto Rico government since 1957. Although still in its preliminary injunctive stage, this case has resulted in major changes to the Puerto Rico milk industry.  Ms. Bertólez has actively participated in counseling the Industria Lechera de Puerto Rico Inc. in all matters directly and indirectly related to the implementation of those regulatory, economic and structural changes resulting by the federal litigation.

Contact Information:


(787) 274-4915

(787) 274-1470

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