John R. O’Connor

José L. Maymí-González is an associate in the San Juan, Puerto Rico, office of Jackson Lewis P.C. His practice focuses on representing employers in workplace law matters, including preventive advice and counseling. José advises clients on matters such as employment contracts and policy drafting, the administration of statutory leaves, and termination litigation. He represents clients in federal, state, and administrative forums, including the EEOC and its local cou...

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

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

Mrs. Carballo Chairs McConnell Valdés' Tax Practice Group. She focuses her practice on complex corporate tax matters, including startup operations, inbound and outbound corporate reorganizations, acquisitions, financings, exit strategies, legislative affairs, tax incentives and exemptions, and competent authority proceedings between the Puerto Rico Treasury Department and the Internal Revenue Service. A substantial part of her practice is devoted to tax minimization strategies through ...

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.

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

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

Mr. Luis F. Llach-Zúñiga, Esq . is a Capital Member at Casillas, Santiago & Torres, LLC, with more than 20 years of experience counseling and representing multinational and local companies in a broad spectrum of high-stakes employment and commercial matters. His practice spans complex commercial and employment litigation, sophisticated transactional work, and the negotiation and structuring of multi-million-dollar concession agreements, in addition to tort, personal injury, ...

Verónica M. Torres-Torres is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Verónica M., 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 Verónica M. 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...