Leila Zubi
Heather Butts, Of Counsel  
Gil Santamarina, Of Counsel 

Leila Zubi has extensive experience in corporate, real estate, and public international law, advocacy, conflict resolution, and bilateral/multilateral negotiations for sovereign state clients. Leila represents individual clients and domestic and foreign business entities in corporate, commercial, finance, technology, e-commerce, real estate, entertainment, and the arts on a broad range of transactions. Leila provides legal counsel to sovereign states and handles all legal matters pertaining to public international law, including international treaties, OFAC and U.N. sanctions regulations, human rights, diplomatic privileges and immunities, conflicts of law, non-recognition of states, and host country relations.

Leila develops cross-border deals by bringing together buyers and sellers and offering legal and business counsel in trade, banking, and contract matters. Her experience includes working with foreign suppliers and manufacturers in the areas of crude oil, textiles, clothing, and pre-fabricated housing design and construction.

From 2002-2011, Leila served as general counsel to a sovereign state’s permanent mission to the United Nations in New York and its embassy and consulate in Washington, D.C. From 2000 – 2002, Leila worked as a Corporate Associate at Herrick, Feinstein, LLP. Prior to attending law school, from 1993-1997, she was the Manager of International Client Relations at Herrick, Feinstein, LLP.

Leila is a 2000 graduate of Benjamin N. Cardozo School of Law where she was the Editor-in-Chief of the Cardozo Journal of Conflict Resolution. She received her Master of Arts degree in Near Eastern Studies from New York University in 1992 where she was the recipient of the Ettinghausen Fellowship. She graduated from Fordham University in 1988 with a Bachelor of Arts in Political Science and Economics. She is fluent in Turkish. Leila is admitted to practice law in New York and New Jersey. She serves on the board of directors of ArteEast and the United Nations Association – New York Chapter.

Of Counsels to Zubi Rosner, LLP 
Zubi Rosner, LLP assembles the best team of attorneys to provide a collaborative and interdisciplinary approach to our clients’ legal and business needs. Our Of Counsels are expert attorneys in their respective areas of legal practice. Further, the local proximity of our Of Counsels allows us to confer and work together on legal matters and cases in real time. Together with our Of Counsels, we deliver the highest quality legal expertise in a broad range of legal disciplines. For efficiency and convenience, our clients are retained and billed directly by Zubi Rosner, LLP.

Heather Butts is an expert in healthcare law and consulting services with over ten years of experience in the healthcare consulting/regulatory sectors, from research administration work to due diligence reviews and risk assessments for faculty group practices and large hospital entities. Ms. Butts provides expert regulatory and compliance advice to attorneys, physicians, and clients on healthcare laws and reform. 

In addition to private consulting work, Heather currently teaches Health Law and Bioethics at both Columbia University and St. John's University School of Law. She is a former Regulatory Specialist at Columbia University Medical Center. She was previously a Senior Associate in the Health Care Regulatory Group at PricewaterhouseCoopers. Heather’s healthcare law specialty includes compliance risk assessments, audits, and due diligence reviews; fraudulent billing, HIPAA, and physician overpayments cases; extensive legal research on HealthIT issues and HITECH regulations; regulatory expertise at an Institutional Review Board; and research on clinical trial oversight and human subject protections, working with the Clinical Trial division of Columbia University Medical Center to refine methods for advising pharmaceutical companies on responsibilities of sponsors. Heather is a current member of the Council for Certified IRB Professionals.

Further, Heather is on the board of several non-profits that focus on young people and underserved populations. She founded the non-profit organization, H.E.A.L.T.H for Youths. Heather received her B.A. from Princeton University, her J.D. from St. John's University School of Law, her M.P.H. from Harvard University, and her M.A. in teaching from Teachers College at Columbia University. She has co-authored several presentations and articles on healthcare, bioethics, and compliance such as Enhancing Efficiency in a Compliance Oversight Program. Heather is admitted to practice law in the District of Columbia. 


Gil Santamarina is a graduate of Brown University and the Benjamin N. Cardozo School of Law at Yeshiva University where he was the author of a Note that was published in the Cardozo Arts & Entertainment Law Journal. After graduating from law school in 1992, he began working in Manhattan at a general practice law firm specializing in civil litigation and real estate law. Since starting Santamarina & Associates in 1999, he has represented individuals and small business as both plaintiff and defendant in a variety of claims brought in State and Federal Court, including landlord-tenant, commercial and contract, and international contract disputes. Santamarina & Associates currently serves as counsel to numerous cooperative and condominium buildings located throughout New York City.

Gil is admitted to practice in all of New York State and the Eastern and Southern Districts of the Federal Court system and has been a panel member of the Legal Referral Service of the New York State Bar Association since 1997.

In addition to his own law practice at Santamarina & Associates, Gil has served as Litigation Of Counsel to Zubi Rosner, LLP since 2007. 

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