Asertis Legal Group delivers decisive legal counsel for businesses and individuals throughout Puerto Rico.
We provide practical, business-focused solutions designed to protect your interests & foster growth.
2020 – 2023
2023
Graduated Magna Cum Laude with top honors in Corporate Law.
Ranked #7 on the General Bar and #10 on the Notarial Bar island-wide.
2023 – 2024
Retail; Banking; Construction; Pharmaceutical.
Emanuel Álvarez Pérez is the Founder and Managing Partner of Asertis Legal Group LLC, where his practice focuses on labor and employment law, commercial and civil litigation, corporate counseling, administrative matters, and notarial services.
Before founding Asertis Legal Group, Emanuel practiced at Jackson Lewis P.C., one of the largest labor and employment law firms in the United States, where he represented and advised employers on a broad range of workplace matters. His experience includes employment litigation, wrongful termination and discrimination claims, workplace investigations and disputes, employment policies and handbooks, labor and employment compliance, and day-to-day counseling of employers.
Previously, Emanuel practiced at Estrella, LLC, where he represented businesses and individuals in complex litigation and employment matters. His experience spans commercial and contractual disputes, employment litigation, premises liability, medical malpractice, administrative proceedings, gaming law, and defamation matters. He has handled matters throughout all stages of litigation, including pleadings, discovery, depositions, dispositive motions, court conferences, hearings, settlement negotiations, and trial preparation.
Emanuel earned his Juris Doctor, Magna Cum Laude, from the Interamerican University of Puerto Rico School of Law. His academic and professional achievements include attaining the seventh-highest score on the March 2023 Puerto Rico General Bar Examination and the tenth-highest score on the September 2023 Puerto Rico Notarial Bar Examination, as well as receiving recognition for earning the highest grade in Corporate Law. He has also been listed in The Best Lawyers in Puerto Rico™️.
His professional background includes experience with the United States Attorney’s Office for the District of Puerto Rico and the Puerto Rico Department of State. He has also written on legal developments affecting businesses and employers and has participated in seminars and presentations on labor and employment law.
Emanuel brings a practical and business-oriented perspective to his practice. He combines litigation experience with preventive counseling to help businesses and individuals understand their legal risks, evaluate their options, and develop effective strategies tailored to their particular needs.
He is fluent in Spanish and English.
ealvarez@asertispr.com
(787) 526-9528
2020 – 2023
2025
Graduated Cum Laude.
Ranked #7 on the General Bar and #10 on the Notarial Bar island-wide.
Best Lawyers Puerto Rico 2026
Labor and Employment; Labor & Employment Litigation; Administrative Law; Litigation & Dispute Resolution; Consumer Affairs Litigation; Notary Services
Advised employers on workplace disputes, compliance, and policies.
Keila R. Barreto Castro serves as Of Counsel to Asertis Legal Group LLC, where her practice focuses on administrative law, government matters, contracts, and mortgage-related matters.
Keila has developed significant experience in administrative law, representing and defending government agencies in a variety of legal and administrative proceedings. Through this work, she has gained a strong understanding of the legal and regulatory framework governing public entities in Puerto Rico, as well as the particular considerations involved in representing governmental clients.
Her practice also includes experience in contractual and mortgage matters, including the review and analysis of agreements, legal documentation, and transactions. This combination of administrative, contractual, and transactional experience allows her to approach legal matters from both a regulatory and practical perspective.
In addition to her legal practice, Keila brings extensive knowledge in business development and human resource*. Her background in these areas provides her with a broader understanding of organizational operations, personnel management, and business strategy, allowing her to consider not only the legal implications of a matter but also its practical impact on a client’s operations and objectives.
Keila earned her Juris Doctor from the Interamerican University of Puerto Rico School of Law in 2023.
At Asertis Legal Group, Keila combines her experience in administrative and government matters with her business and human resources background to provide practical, strategic, and results-oriented counsel to clients navigating legal, regulatory, and operational challenges.
Keila R. Barreto Castro serves as Of Counsel to Asertis Legal Group LLC, where her practice focuses on administrative law, government matters, contracts, and mortgage-related matters.
Keila has developed significant experience in administrative law, representing and defending government agencies in a variety of legal and administrative proceedings. Through this work, she has gained a strong understanding of the legal and regulatory framework governing public entities in Puerto Rico, as well as the particular considerations involved in representing governmental clients.
Her practice also includes experience in contractual and mortgage matters, including the review and analysis of agreements, legal documentation, and transactions. This combination of administrative, contractual, and transactional experience allows her to approach legal matters from both a regulatory and practical perspective.
In addition to her legal practice, Keila brings extensive knowledge in business development and human resource*. Her background in these areas provides her with a broader understanding of organizational operations, personnel management, and business strategy, allowing her to consider not only the legal implications of a matter but also its practical impact on a client’s operations and objectives.
Keila earned her Juris Doctor from the Interamerican University of Puerto Rico School of Law in 2023.
At Asertis Legal Group, Keila combines her experience in administrative and government matters with her business and human resources background to provide practical, strategic, and results-oriented counsel to clients navigating legal, regulatory, and operational challenges.
kbarreto@asertispr.com
(787) 802-8310
2015 – 2018
Federal Bar 2023
Graduated Cum Laude
Recommended Lawyer Legal500 2025 Best Lawyer's Puerto Rico 2026
Litigation & Dispute Resolution; Federal Litigation; Labor & Employment Litigation
Oil and Gas, Banking
Stephanie Vilella serves as Of Counsel to Asertis Legal Group LLC, where her practice focuses on complex civil and commercial litigation, federal litigation, and strategic counseling for businesses operating in highly regulated industries.
Stephanie has substantial experience representing corporate clients in sophisticated disputes involving complex commercial agreements, constitutional claims, shareholder disputes, derivative actions, receiverships, requests for injunctive relief, and other high-stakes federal litigation. Her practice also includes advising businesses on regulatory matters, including issues affecting the banking and energy industries.
Prior to returning to private practice in Puerto Rico, Stephanie served as Assistant Corporation Counsel in the Special Federal Litigation Division of the New York City Law Department. In that role, she represented the City of New York, the New York City Health and Hospitals Corporation, and City employees in federal civil rights litigation. Her experience includes serving as lead counsel in complex federal matters, including class-action litigation.
Stephanie earned her Juris Doctor, cum laude, from American University Washington College of Law, where she served as Associate Managing Editor of the American University Business Law Review. During law school, she also served as a research assistant to Professor Jeremi Duru and gained judicial experience through an internship with the Honorable Laura A. Cordero of the Superior Court of the District of Columbia. She earned her Bachelor of Arts in Political Communication from The George Washington University.
Her professional accomplishments have been recognized by leading legal publications. Stephanie has been recognized by The Best Lawyers in Puerto Rico™️ for Energy Law and by The Legal 500 as a Recommended Lawyer. She also received the Special Federal Litigation Division Chief Award from the New York City Law Department and was recognized for exceptional pro bono service during law school.
Stephanie is admitted to practice in the State of New York and before the United States District Courts for the Eastern and Southern Districts of New York and the District of Puerto Rico. She is a member of the American Bar Association, the New York City Bar Association, and the Federal Bar Association, where she previously served on the Board of Directors of the Hon. Raymond L. Acosta Puerto Rico Chapter.
svilella@asertispr.com
(787) 802-8310
2020 – 2023
2023
Graduated Summa Cum Laude
Ranked #15 on the General Bar and #8 on the Notarial Bar island-wide.
2023 – 2024
Family Law; Notary; Permits
Retail; Corporation; Construction
Stephanie Vilella serves as Of Counsel to Asertis Legal Group LLC, where her practice focuses on complex civil and commercial litigation, federal litigation, and strategic counseling for businesses operating in highly regulated industries.
Stephanie has substantial experience representing corporate clients in sophisticated disputes involving complex commercial agreements, constitutional claims, shareholder disputes, derivative actions, receiverships, requests for injunctive relief, and other high-stakes federal litigation. Her practice also includes advising businesses on regulatory matters, including issues affecting the banking and energy industries.
Prior to returning to private practice in Puerto Rico, Stephanie served as Assistant Corporation Counsel in the Special Federal Litigation Division of the New York City Law Department. In that role, she represented the City of New York, the New York City Health and Hospitals Corporation, and City employees in federal civil rights litigation. Her experience includes serving as lead counsel in complex federal matters, including class-action litigation.
Stephanie earned her Juris Doctor, cum laude, from American University Washington College of Law, where she served as Associate Managing Editor of the American University Business Law Review. During law school, she also served as a research assistant to Professor Jeremi Duru and gained judicial experience through an internship with the Honorable Laura A. Cordero of the Superior Court of the District of Columbia. She earned her Bachelor of Arts in Political Communication from The George Washington University.
Her professional accomplishments have been recognized by leading legal publications. Stephanie has been recognized by The Best Lawyers in Puerto Rico™️ for Energy Law and by The Legal 500 as a Recommended Lawyer. She also received the Special Federal Litigation Division Chief Award from the New York City Law Department and was recognized for exceptional pro bono service during law school.
Stephanie is admitted to practice in the State of New York and before the United States District Courts for the Eastern and Southern Districts of New York and the District of Puerto Rico. She is a member of the American Bar Association, the New York City Bar Association, and the Federal Bar Association, where she previously served on the Board of Directors of the Hon. Raymond L. Acosta Puerto Rico Chapter.
jcorrea@asertispr.com
(787) 802-8310
2020 – 2023
Graduated Magna Cum Laude with top honors in Corporate Law.
Stephanie Vilella serves as Of Counsel to Asertis Legal Group LLC, where her practice focuses on complex civil and commercial litigation, federal litigation, and strategic counseling for businesses operating in highly regulated industries.
Stephanie has substantial experience representing corporate clients in sophisticated disputes involving complex commercial agreements, constitutional claims, shareholder disputes, derivative actions, receiverships, requests for injunctive relief, and other high-stakes federal litigation. Her practice also includes advising businesses on regulatory matters, including issues affecting the banking and energy industries.
Prior to returning to private practice in Puerto Rico, Stephanie served as Assistant Corporation Counsel in the Special Federal Litigation Division of the New York City Law Department. In that role, she represented the City of New York, the New York City Health and Hospitals Corporation, and City employees in federal civil rights litigation. Her experience includes serving as lead counsel in complex federal matters, including class-action litigation.
Stephanie earned her Juris Doctor, cum laude, from American University Washington College of Law, where she served as Associate Managing Editor of the American University Business Law Review. During law school, she also served as a research assistant to Professor Jeremi Duru and gained judicial experience through an internship with the Honorable Laura A. Cordero of the Superior Court of the District of Columbia. She earned her Bachelor of Arts in Political Communication from The George Washington University.
Her professional accomplishments have been recognized by leading legal publications. Stephanie has been recognized by The Best Lawyers in Puerto Rico™️ for Energy Law and by The Legal 500 as a Recommended Lawyer. She also received the Special Federal Litigation Division Chief Award from the New York City Law Department and was recognized for exceptional pro bono service during law school.
Stephanie is admitted to practice in the State of New York and before the United States District Courts for the Eastern and Southern Districts of New York and the District of Puerto Rico. She is a member of the American Bar Association, the New York City Bar Association, and the Federal Bar Association, where she previously served on the Board of Directors of the Hon. Raymond L. Acosta Puerto Rico Chapter.
aalvarez@asertispr.com
(787) 802-8310