About Arthur O
Arthur O Tisi built a steady, deliberate path into the courtroom. He studied political science as an undergraduate at New York University and finished his B.A. in 1991. He then pursued legal training at Brooklyn Law School, earning his J.D. in 1995. Those formative years set the pattern for a career spent practicing across two neighboring jurisdictions.
He is admitted to practice in both New York and New Jersey. Early in his career he established ties in New Jersey, joining the State Bar of New Jersey in 1995. Two years later he became a member of the New York State Bar Association, and over time he added local bar ties in the Bronx and Brooklyn. His memberships include the New York State Trial Lawyers Association, where he has been listed since 2003, the Bronx County Bar Association since 2010, and the Brooklyn Bar Association since 2015. Those affiliations reflect steady engagement with the professional communities where he practices.
Tisi’s work has centered on litigation. He has spent much of his practice in courtrooms and on trial calendars, handling contested matters that require courtroom presence and case preparation. His career shows a practical orientation: preparation of cases, managing evidence, courtroom argument and client representation through trial. He appears most frequently on matters requiring sustained advocacy rather than transactional work or regulatory counseling.
Over the years he has navigated the procedural demands of two state systems. Practicing across New York and New Jersey requires attention to differing local rules, filing requirements and court procedures. Tisi’s memberships in county and state bar organizations suggest he keeps current on those differences and on developments in trial practice. He also draws on an academic background in political science and formal legal training from a New York law school to ground his courtroom strategy.
Clients and peers see him as a lawyer present in court and active in bar circles. He maintains connections with local bar associations and the state trial lawyers’ group. Those memberships provide a steady channel for professional education, peer discussion and local legal developments.
Today he maintains a practice focused on litigation matters in New York and New Jersey. He represents clients in state courts and continues to participate in the bar organizations that serve the communities where he works.