Rosa María Cruz-Niemiec

Mr. Juan J. Casillas-Ayala, Esq. is an Attorney at Casillas, Santiago & Torres, LLC, where he specializes in Labor & Employment and Commercial Litigation. He was a shareholder in the Labor and Employment division of a major law firm in Puerto Rico, where he further sharpened his litigation skills during his 11 years tenure at the firm. Prior to this, he served as law clerk at the Court of Appeals with now Supreme Court Justice Rafael Martínez-Torres and subsequently at the Supreme Co...

Rosa M. González-Lugo is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and M&A Law, Employee Benefits Law and Tax Law. Rosa M., 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 Rosa M. 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 ...

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.

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.

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...

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

Daniel Quiles-Pumarejo is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Daniel, 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 Daniel is held by other top lawyers in the same geographic and legal practice area.

As Chair of the Labor & Employment Law Practice Group Ms. Montaner-Sevillano brings to the table her extensive experience in the field and she is able to provide a deep understanding of the intricacies of conducting business in Puerto Rico as well as a unique awareness of the importance of budget supervision and controls. Ms. Montaner-Sevillano concentrates her practice in employment rights laws. She provides counseling and litigation defense in cases filed under the Americans with Disabi...

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.