J. Ramón Rivera-Morales

Mr. Gelpí's practice has encompassed general civil matters and consultation, in areas ranging from simple matters to complex litigation in maritime, aviation, products liability, insurance, banking, commercial, insurance, and medical-hospital liability. He has had extensive litigation experience in federal, state and administrative forums.

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.

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.

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.

Mrs. Arrieta-Rivera's practice includes general civil and commercial litigation with emphasis on tax disputes and tax litigation, complex class actions, complex litigation, tort law, healthcare facility liability, and petroleum industry regulatory matters as well as collections cases. She represents clients before both state and federal court at trial and appellate levels and has worked on the defense of several high-risk cases in which she has assisted clients in obtaining favorable rulings ...

José A. Díaz-Brugueras is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. José A., 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 José A. is held by other top lawyers in the same geographic and legal practice area.

José L. Notario-Toll is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and M&A Law. José L., 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 José L. is held by other top lawyers in the same geographic and legal practice area.

His primary practice is in the area of bankruptcy, reorganization and creditors’ rights. He has extensive experience in the field and has represented local banks, among other secured and unsecured creditors, in a wide array of bankruptcy and collection litigation. He is a member of the firm’s PROMESA Task Force. He also represents clients in securities arbitration cases before the Financial Industry Regulatory Authority. As member of the firm’s PROMESA Task Force, Mr. Zouair...

Stephanie Vilella is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Stephanie, 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 Stephanie 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...