Gregory T. Usera

Mr. Luis F. Llach-Zúñiga, Esq. is an Attorney at Casillas, Santiago & Torres, LLC, with more than 13 years counseling and representing multinational and local companies on diverse matters, ranging from employment-related concerns and lawsuits, to handling and litigating complex tort, personal injury and premises liability claims before the U.S. District Court for the District of Puerto Rico and local courts. Mr. Luis F. Llach-Zúñiga, Esq. has extensively counseled and successfully rep...

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.

Carlos E. Serrano is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Carlos E., who practices law in San Juan, Puerto Rico, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carlos E. is held by other top lawyers in the same geographic and legal practice area.

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

He specializes in cross border transactions, government affairs, and government procurement and contracting. His corporate practice has been focused primarily on insurance and banking regulatory issues and insurance M&A transactions, involving both insurance company and insurance brokerage asset purchase and stock purchase transactions. Mr. Ramirez has also been involved in the organization and authorization of insurers, including the incorporation and organization of the first domestic l...

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...

Leslie Y. Flores-Rodríguez is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice and Litigation. Leslie Y., 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 Leslie Y. is held by other top lawyers in the same geographic and legal practice area.

Pedro J. Nieves-Miranda is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Pedro J., 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 Pedro J. is held by other top lawyers in the same geographic and legal practice area.

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

He concentrates his practice in the representation of hospitality industry clients. He has structured joint ventures for investments in hospitality projects and has represented developers in all aspects of the financing of these projects, including the negotiation and execution of credit agreements, guaranty agreements and mezzanine financing arrangements. He has also represented developers in the negotiation and execution of hotel management agreements with some of the principal hotel brands...