Charles A. De Mier-LeBlanc

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.

Her main areas of practice include banking and financial institutions, commercial financing, mergers and acquisitions, corporate reorgs, governance and public financing. She also advises clients on aspects of doing business in Puerto Rico, including fund formation (private equity and Opportunity Zone funds). Ms. Acosta regularly advises national and local banks, broker-dealers, mortgage institutions and other financial institutions (including international banking entities) and institutional ...

Lee Sepulvado-Ramos is a top attorney recognized by Best Lawyers in the practice area(s) of Arbitration and Mediation and Litigation. Lee, who practices law in San Juan, Puerto Rico, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lee is held by other top lawyers in the same geographic and legal practice area.

Juan Ramón Cancio-Ortiz is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law, Corporate and M&A Law and Structured Finance Law. Juan Ramón, who practices law in San Juan, Puerto Rico, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Juan Ramón is held by other top lawyers in the same geographic and legal practice area.

Karena is a senior member at Marini Pietrantoni Muñiz LLC (“MPM”). Karena’s practice is focused on complex insurance recovery disputes on behalf of commercial and corporate policyholders. As a trial lawyer, Karena has helped clients secure millions of dollars in insurance proceeds on covered claims for hurricane losses. Karena regularly counsels clients on insurance recovery strategy and claim handling through the different stages, extrajudicially, through alternate d...

Carlos A. Valldejuly-Sastre is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative Law, Arbitration and Mediation, Competition / Antitrust Law and Litigation. Carlos A., who practices law in San Juan, Puerto Rico, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carlos A. is held by other top lawyers in the same geographic and legal practice area.

Alexandra C. Casellas-Cabrera is a top attorney recognized by Best Lawyers in the practice area(s) of Competition / Antitrust Law. Alexandra C., 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 Alexandra C. is held by other top lawyers in the same geographic and legal practice area.

Maité Medero is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law and Litigation. Maité, who practices law in San Juan, Puerto Rico, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Maité is held by other top lawyers in the same geographic and legal practice area.

Ms. Szendrey-Ramos concentrates her practice in trademark prosecution, intellectual property counseling, and trusts and estate planning. Prior to joining McConnell Valdés, Ms. Szendrey-Ramos was a shareholder at a major San Juan law firm, where she helped create and manage one of Puerto Rico’s preeminent intellectual property law practice groups. She has advised clients in multiple and complex trademark, copyright, trade secret, moral rights of authors, and right of publicity iss...

Kenneth Suria is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Arbitration and Mediation, Competition / Antitrust Law, Litigation and Medical Malpractice Litigation. Kenneth, who practices law in San Juan, Puerto Rico, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kenneth is held by other top lawyers in the same geographic and legal practice area.