Atty. Devin P. Kosar
Devin P. Kosar joined Rosenberg & Estis in 2008 and is a Member with the firm’s Litigation Department.
Administrative Proceedings & More Attorney · Serving New York, NY · 17+ Years Experience
Profile Summary
About Devin P. Kosar at a Glance
Devin P. Kosar is a Member based in New York, New York, practicing at Rosenberg & Estis, P.C.. They have 17+ years of legal experience, licensed to practice since 2009. Their practice focuses on contracts, class action, commercial re, litigation, and civil rights. Admitted to practice in New York (2009). Educated at St. John's University School of Law (J.D. External, 2008) and Boston University (B.A., 2005). Active member of American Bar Association New York State Bar Association. Serves clients in New York, NY and the surrounding metropolitan area.
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About Devin P. Kosar
- Devin P. Kosar joined Rosenberg & Estis in 2008 and is a Member with the firm’s Litigation Department
- Kosar’s practice involves all areas of real estate litigation including complex commercial litigation, landlord/tenant law and construction law
- Additionally, Kosar also counsels and represents condominium boards in connection with condominium governance and operational matters
- Kosar has extensive experience in all regulatory and administrative law matters before the New York City Office of Administrative Trials and Hearings, such as the Environmental Control Board, Department of Consumer Affairs and Department of Health as well as the New York City Criminal Court
- Kosar received his bachelor’s degree from Boston University and his J.D. from St. John’s University School of Law
- While at St. John’s, Kosar was the External Competition Director for the Moot Court Honor Society and a Senior Staff Member of the St. John’s Journal of Legal Commentary
- Kosar’s note “Payola - Can Pay-For-Play Be Practically Enforced?” was published in the Spring, 2008 Edition of the St. John’s Journal of Legal Commentary
Practice Areas Explained
Devin P. Kosar's Areas of Legal Practice
Each practice area below reflects the types of cases Devin P. Kosar handles, with a practical overview of what that area of law involves and how it may apply to your situation in New York.
Contracts in New York
Devin P. Kosar is one of 76,101 contracts attorneys indexed nationally. Browse contracts attorneys in New York →
Class Action in New York
Devin P. Kosar is one of 26,226 class action attorneys indexed nationally. Browse class action attorneys in New York →
Commercial Real Estate in New York
Devin P. Kosar is one of 15,821 commercial re attorneys indexed nationally. Browse commercial re attorneys in New York →
Civil Litigation in New York
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Devin P. Kosar is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in New York →
Civil Rights in New York
Civil rights attorneys for discrimination, police misconduct, constitutional rights, and civil liberties cases.
Devin P. Kosar is one of 69,634 civil rights attorneys indexed nationally. Browse civil rights attorneys in New York →
Jurisdictional Context
Why Local Counsel Matters in New York
Practicing law in New York. Legal matters in New York are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in New York are typically filed in the local municipal court or the appropriate New York state district court, depending on subject matter and amount in controversy. An attorney licensed in New York brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in New York courts without local counsel or pro hac vice admission.
New York Courts and Legal Process
Choosing a New York-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
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Professional Profile
Why Clients in New York Choose Devin P. Kosar
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Devin P. Kosar's practice in the field of contracts, class action, commercial re, litigation, and civil rights.
Decade-Tested Legal Experience
Devin P. Kosar brings 17+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Broad Practice Area Coverage
Covering contracts, class action, and commercial re, Devin P. Kosar can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in New York
A New York-based practice means Devin P. Kosar attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
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Devin P. Kosar's Practice Areas & Specializations
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