New York Office
Chemás & Asociados operates a full-service office in New York City, providing comprehensive legal advisory to clients across the United States and internationally.
Led by Sergio Alejandro Chemás Vélez, a member of the New York Bar with over a decade of experience in public law, litigation, and arbitration, our New York office delivers strategic legal guidance across a broad spectrum of matters. Our team combines deep expertise in both U.S. and Colombian jurisdictions to serve the complex needs of our clients.
With offices in both New York and Bogotá, we offer seamless cross-border legal solutions, ensuring our clients receive the highest quality of service backed by our team's extensive experience and knowledge in multiple legal systems.
Practice Areas
International Arbitration
International Arbitration
Expert representation in complex international arbitration proceedings across multiple jurisdictions.
Public & Administrative Law
Public & Administrative Law
Strategic counsel on administrative processes, regulatory compliance, and public law matters.
Government Contracts
Government Contracts
Comprehensive advisory on government procurement, contract structuring, and compliance.
Private Contracting
Private Contracting
End-to-end legal support for large-scale infrastructure and development projects.
Attorney admitted to the New York Bar, with more than 10 years' experience in public law, litigation, and arbitration. Partner at Chemás & Asociados since 2019.
Sergio Alejandro Chemás has more than 6 years of professional experience in the Litigation and Arbitration department, specializing in administrative law and public procurement. He has been associated with the firm since 2012 and became a partner at Chemás & Asociados in 2019.
He is an attorney and researcher in the Administrative Law Department at Universidad Externado de Colombia, with several publications in administrative law, fundamentals, public services, and public procurement.
His practice focuses on public law litigation and arbitration, representing both national and international companies in complex disputes before Colombian courts and arbitration tribunals.
LL.M. in Law
University of Pennsylvania Carey Law School (2019)
Specialized in corporate law and international transactions
Certificate in Business and Law
The Wharton School, University of Pennsylvania (2019)
Business strategy and legal frameworks
Master's Degree in Comparative Law
Paris I Panthéon-Sorbonne, Paris - France (2018)
Advanced Studies in Administrative and Public Law
Paris II Panthéon-Assas, Paris - France (2017)
Law Degree
Universidad Externado de Colombia
Professor and researcher in Administrative Law Department
Public Law & Administrative Law
Comprehensive advice on regulatory compliance and administrative procedures
Public Procurement
Strategic counsel on government contracts and public-private partnerships
Litigation & Arbitration
Representation before courts and arbitration tribunals in complex disputes
Private Contracting
Advice on commercial agreements and contract negotiations
Legal 500 Next Generation Partner
Sergio has been recognized by Legal 500 as a Next Generation Partner in Latin America, an accolade reserved for rising legal professionals demonstrating exceptional skill, strategic insight, and a commitment to excellence in their practice areas. This recognition reflects his proven track record in public law, arbitration, and dispute resolution.
Publications & Academic Contributions
Several publications in the field of administrative law, including research on public services, legal foundations, and public procurement at Universidad Externado de Colombia.
Spanish
Native
English
Professional
French
Professional
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Office Address
800 Third Avenue FRNT A #1029
New York, NY 10022
United States
Phone
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