Fernando O. Zambrana Avilés
About Fernando O. Zambrana Avilés
Fernando O. Zambrana Avilés is a lawyer based in San Juan, PR and has been recognized in The Best Lawyers in Puerto Rico™ since 2026. Fernando O. Zambrana Avilés is recognized in the following practice areas:
- San Juan, Puerto Rico
- Immigration Law
- Litigation
Current Firm: Colon Serrano Zambrana LLC
Location: San Juan, PR
Nearby Lawyers
Mr. Fernández-Lugo Chairs McConnell Valdés' Environmental, Energy & Land Use Practice Group. He represents clients before local and federal agencies with jurisdiction over environmental, energy and land use matters, such as the U.S. Environmental Protection Agency, the U.S. Army Corps of Engineers, the Environmental Quality Board, the Department of Natural and Environmental Resources, the Solid Waste Management Authority, the Puerto Rico Electric Power Authority, the State E...
Ms. González-Berríos' practice emphasis is on corporate tax and employee benefits. She has advised taxpayers regarding both tax and tax exemption issues relating to corporate acquisitions, reorganizations and liquidations. Ms. González-Berríos has represented clients in adversarial proceedings, requests for private letter rulings and negotiations of closing agreements before the Puerto Rico Treasury Department. Ms. González-Berríos regularly advises c...
Maité Medero is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law and Litigation. Maité, 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 Maité is held by other top lawyers in the same geographic and legal practice area.
Boris Jaskille is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and M&A Law. Boris, 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 Boris is held by other top lawyers in the same geographic and legal practice area.
Mr Casellas has over 25 years of experience in various corporate and financing matters, including project development and finance, commercial lending and structured finance, real estate and mergers and acquisitions. He has acted as counsel for various financial institutions in commercial lending and structured finance transactions. Some of his recent transactions include acting as counsel for Autopistas Metropolitanas de Puerto Rico, LLC in the financing of the PR-22 toll road concession, the...
Mr. Mayoral acts as lead counsel in a wide range of banking, securities, and insurance acquisitions, and on regulatory applications to federal and Puerto Rico banking agencies. His practice is concentrated in banking, financial, and insurance regulatory matters, as an advisor for banks and other financial institutions (including international banking entities doing business in Puerto Rico), and insurance companies and producers. He has also acted as lead counsel in a wide range of corporate t...
Jaime Mercado-Almodóvar is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and M&A Law. Jaime, 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 Jaime is held by other top lawyers in the same geographic and legal practice area.
Carlos E. George is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Carlos E., 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 Carlos E. is held by other top lawyers in the same geographic and legal practice area.
Lady E. Cumpiano-Alfonso is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Lady E., 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 Lady E. is held by other top lawyers in the same geographic and legal practice area.
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.
Explore and Learn
How to Sue for Defamation: Costs, Process and What to Expect
by Bryan Driscoll
Learn the legal standards, costs and steps involved when you sue for defamation, including the difference between libel and slander.
2026 Best Lawyers Awards in Canada: Marking 20 Years of Excellence
by Jamilla Tabbara
Honoring Canada’s most respected lawyers and spotlighting the next generation shaping the future of law.
The Family Law Loophole That Lets Sex Offenders Parent Kids
by Bryan Driscoll
Is the state's surrogacy framework putting children at risk?
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
Unenforceable HOA Rules: What Homeowners Can Do About Illegal HOA Actions
by Bryan Driscoll
Not every HOA rule is legal. Learn how to recognize and fight unenforceable HOA rules that overstep the law.
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
Reddit’s Lawsuit Could Change How Much AI Knows About You
by Justin Smulison
Big AI is battling for its future—your data’s at stake.
US Tariff Uncertainty Throws Canada Into Legal Purgatory
by Bryan Driscoll
The message is clear: There is no returning to pre-2025 normalcy.
The 2026 Best Lawyers Awards in Chile, Colombia and Puerto Rico
by Jamilla Tabbara
The region’s most highly regarded lawyers.