Jorge Antongiorgi-Betancourt

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...

His practice focuses on Corporate Tax, Employee Benefits, Estate and Gift Taxation, Excise, Individual and Personal Property Taxes, Tax Audits, and Tax Litigation. Mr.Ruiz-Rodríguez has over 40 years of experience in the practice of law. Through the years he has advised some of the largest local and U.S. employers in Puerto Rico in the manufacturing, financial and retail sectors.

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.

His main areas of practice are mergers & acquisitions, public financing, debt restructuring, project finance, distribution & sales representation laws and contracts, government bids & contracts, and public-private partnerships. Mr. Céspedes chaired the Firm’s Corporate Practice Group from 2002 to 2018. He is ranked as one of Puerto Rico's Leading Attorneys in the Corporate/Commercial field by the international publication Chambers & Partners in both its Global and...

Enrique Enríquez is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation. Enrique, 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 Enrique is held by other top lawyers in the same geographic and legal practice area.

Mariela Rexach is an experienced federal litigator with outstanding command of federal civil procedure and evidence, who practices in all areas of employment law. She has actively participated in several major cases before the U. S. District Court for the District of Puerto Rico and the U. S. Court of Appeals for the First Circuit. She has over 50 published federal cases and an outstanding summary judgment record. She has also successfully tried numerous cases before Puerto Rico courts and re...

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.

Elaine Maldonado-Matías is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law and Litigation. Elaine, who practices law in San Juan, Puerto Rico, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Elaine is held by other top lawyers in the same geographic and legal practice area.

Mr. Rodríguez, who joined the Firm in 1974, practices in the areas of tax exemption, general corporate and government contracts. He has negotiated and re-negotiated dozens of grants of tax exemption for companies owned by U.S., European and Puerto Rican entities, including Johnson & Johnson, Schering-Plough, Medtronic, Harvey Hubbell, Astra-Zeneca (U.K.), Aventis (France) and MOVA (Puerto Rico).

Luis C. Marini-Biaggi is a capital member of Marini Pietrantoni Muniz LLC and Chair of the Insolvency & Restructuring Group. Luis concentrates his practice in all aspects of insolvency matters including bankruptcy, acquisition of distressed assets, public and private sector restructurings. He also regularly handles complex commercial litigation at the trial and appellate level, including defense of lender liability suits and contract litigation. He regularly represents financial instituti...