John R. O’Connor

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 ...

Michelle Marichal-Soderberg is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Michelle, 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 Michelle is held by other top lawyers in the same geographic and legal practice area.

Ana B. Rosado-Frontanés is of counsel in the San Juan, Puerto Rico, office of Jackson Lewis P.C. Ana provides legal counsel regarding all aspects of labor and employment matters and litigates before all state, federal, administrative and local forums. Ana began her legal career as a corporate lawyer in a New York law firm. After two years practicing corporate law, she shifted gears and began practicing employment law, drawn to the human aspects involved in employment law issues and cas...

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.

Mr. Zayas-Marxuach has developed a commercial and general civil litigation practice in federal and state courts, with emphasis on distribution and franchising, insurance litigation, the Racketeer Influenced and Corrupt Organizations (RICO) Act, class actions and product liability, particularly prescription drug litigation. Additionally, Mr. Zayas-Marxuach regularly provides litigation and counseling services to individuals in estate and probate matters.

Alba I. Joubert Pereira is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Alba I., 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 Alba I. is held by other top lawyers in the same geographic and legal practice area.

María Elena González-Calderón is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and M&A Law. María Elena, 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 María Elena is held by other top lawyers in the same geographic and legal practice area.

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...

Viviana Miranda Ortiz is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Viviana, 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 Viviana is held by other top lawyers in the same geographic and legal practice area.

Mr. Escudero’s practice includes advice in structuring commercial transactions, purchase and sale of businesses - including manufacturing - as well as corporate reorganizations; he also advises businesses and individuals with regard to the operation, expansion and transfers of their businesses. He counsels individuals on estate planning, wills, trusts and wealth preservation including asset protection trusts. He has worked on numerous green field development of real estate for the estab...