Dayrel S. Sewell, Esq. – Top Litigation Attorney in New York| Award-Winning NYC Intellectual Property Lawyer Attorney Dayrel S. Sewell, Esq. stands out as one of the best Litigation Attorneys in New York City, earning national and local recognition for excellence. Featured on CNN as a top legal authority and awarded Litigation Lawyer of the Year in the USA, Mr. Sewell continues to be a leading figure in NYC litigation and intellectual property law. His achievements include: 9-time New York Super Lawyers honoree 11-time National Black Lawyers – Top 100 recipient Rated “Superb” by Avvo and recognized as a Top Litigation Attorney in NYC This level of acclaim makes Mr. Sewell a trusted choice for clients seeking superior representation in New York litigation, intellectual property disputes, and patent and trademark matters. Comprehensive Litigation and Transactional Experience in New York Attorney Sewell brings extensive experience in state and federal litigation, as well as high-level transactional matters. He has represented clients across Brooklyn, Manhattan, and wider New York State. He is highly skilled in matters related to the United States Patent & Trademark Office (USPTO) and the United States Copyright Office. Mr. Sewell represents: Patent and trademark owners Copyright holders Food & drug companies Business owners Real estate investors Startups and entrepreneurs Corporate and private clients His past work at a Top 100 U.S. law firm focused heavily on litigation and intellectual property law, making him a top choice for clients seeking strong legal protection in NYC and beyond. Proven Track Record in Justice Advocacy As a proud alumnus of the Innocence Project at the Benjamin N. Cardozo School of Law, Attorney Sewell drafted legal motions and briefs to reopen wrongful convictions using DNA evidence. His contributions directly led to the exoneration of a client, further demonstrating his commitment to justice and exceptional legal skills. Deep Expertise in Patent Litigation & Regulatory Law During his legal fellowship at Bristol-Myers Squibb Company, Mr. Sewell gained advanced experience in: Patent litigation Patent prosecution Federal Circuit appeals Pharmaceutical regulatory matters His work in compliance, corporate agreements, and clinical trial documentation positions him as a highly knowledgeable NYC patent attorney and regulatory law advisor. Real Estate Litigation Attorney Serving NYC, Brooklyn & Manhattan With New York facing a growing real estate crisis, Attorney Sewell offers strategic counsel to property owners, buyers, sellers, and investors. He provides strong litigation support for clients across Brooklyn, Manhattan, Queens, and New York City in matters involving property disputes, contracts, landlord–tenant issues, and more. Academic Excellence & Research Background Mr. Sewell earned his Master of Public Health (M.P.H.) from Columbia University, where he directed medical research studies. He also holds a B.A. from The Johns Hopkins University, majoring in Natural Sciences and Public Health. His scientific background further strengthens his analytical approach to complex legal issues. Despite a demanding professional life, Attorney Sewell dedicates time to pro bono legal services, helping underserved communities with legal challenges. He is also proficient in Spanish, enabling him to assist a broader range of clients throughout New York City. Why NYC Clients Choose Dayrel S. Sewell, Esq. Clients select Mr. Sewell because he is: A Top Litigation Attorney in NYC An experienced Intellectual Property Lawyer in New York A trusted Patent & Trademark Attorney in Manhattan An award-winning professional recognized nationally Committed to justice, precision, and client-focused representation Some examples of Attorney Sewell’s work include: High-stakes litigation, settlements, and/or verdicts involving businesses, class actions, municipal liability, contracts, civil rights, real estate, patents, securities, foreclosures, trademarks, copyrights, LLCs, and torts in excess of 10 million dollars Negotiating/authoring business contracts real estate closings, brokerage services, and transactions (i.e., conveyances, leases, title searches, deeds, assignments, etc.) drafting and registering patents, trademarks, and copyrights; issuing patent and trademark opinions counseling clients regarding food & drug product registration, compliance, and other regulatory matters advising startup companies and creating their business entity structure Back To Top Bar admissions United States Supreme Court New York District of Columbia United States Patent Bar United States Court of Appeals for the Second Circuit United States Court of Appeals for the Federal Circuit United States District Court for the Southern District of New York United States District Court for the Eastern District of New York Degrees J.D., Benjamin N. Cardozo School of Law M.P.H., Columbia University B.A., The Johns Hopkins University
