Diego Murgia-Díaz

Mrs. Cartagena maintains a broad litigation and counseling practice representing corporate entities in a wide variety of business disputes. She has significant experience in complex litigation, including consumers’ class actions, insurance litigation, contractual disputes, tax deficiency proceedings and general tort litigation in both state and federal courts. She also has significant experience in administrative forums before multiple agencies and on bids and procurement consulting and...

María Echenique-Arana is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. María, who practices law in San Juan, Puerto Rico, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which María is held by other top lawyers in the same geographic and legal practice area.

Mr. Miguel A. Santiago. Esq. is an Attorney at Casillas, Santiago & Torres, LLC. Prior to founding CST, Mr. Santiago was a partner at one of Puerto Rico’s largest and oldest law firms where he spent close to ten years counseling in the corporate-tax area including corporate, tax, employee benefits, real estate and employment law. Before such tenure, he was a senior tax consultant at Ernst & Young, LLP. Mr. Santiago counsels employers in all aspects of Corporate, Tax, Employee Be...

Her main areas of practice are tax incentives, employee benefits, corporate and individual income taxes. Prior to joining McConnell Valdés, Ms. González-Ibarría was a Legal Counsel with the Internal Revenue Area of the Puerto Rico Treasury Department. While with the Puerto Rico Treasury Department, she reviewed closing agreements and private letter rulings concerning a broad range of issues including general income taxation, withholding, corporate reorganizations and empl...

Caridad Muñiz-Padilla is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Caridad, who practices law in San Juan, Puerto Rico, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Caridad is held by other top lawyers in the same geographic and legal practice area.

Edna E. Pérez-Román is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation. Edna E., who practices law in San Juan, Puerto Rico, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Edna E. is held by other top lawyers in the same geographic and legal practice area.

Angel Rey Seijo is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Angel, who practices law in San Juan, Puerto Rico, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Angel is held by other top lawyers in the same geographic and legal practice area.

Mr. Fernández-Lugo Chairs McConnell Valdés' Environmental, Energy & Land Use Practice Group. He represents clients before local and federal agencies with jurisdiction over environmental, energy and land use matters, such as the U.S. Environmental Protection Agency, the U.S. Army Corps of Engineers, the Environmental Quality Board, the Department of Natural and Environmental Resources, the Solid Waste Management Authority, the Puerto Rico Electric Power Authority, the State E...

Elizabeth Perez-Lleras is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Elizabeth, who practices law in San Juan, Puerto Rico, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Elizabeth is held by other top lawyers in the same geographic and legal practice area.

Ramón Coto-Ojeda is the Managing Partner of Coto & Associates, who also heads the firm’s Alternative Dispute Resolution practice and the Cuba Team. Before forming Coto & Associates in January of 1999, he was a partner of McConnell Valdés where he worked since he joined the firm in 1982 as a law clerk. Mr. Coto-Ojeda has vast experience representing institutional lenders and other corporate interests in civil and complex commercial litigations, including products li...