Atty. Justin Fleischacker
Justin Fleischacker is an associate in the Litigation practice of Paul Hastings and is based in the firm's New York office. His practice focuses on complex litigation with an emphasis on intellectual property matters in the fields of pharmaceuticals and biotechnology.
Intellectual Property Law & More Attorney · Serving New York, NY
Profile Summary
About Justin Fleischacker at a Glance
Justin Fleischacker is a patent, real estate, and ip attorney based in New York, New York, practicing at Paul Hastings LLP. Educated at Benjamin N. Cardozo School of Law (J.D., 2018). Recognitions include Best Lawyers in America — Intellectual Property Law (2026), Best Lawyers in America — Life Sciences Practice (2026), and Best Lawyers in America — Litigation - Patent (2026). Serves clients in New York, NY and the surrounding metropolitan area.
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About Justin Fleischacker
- Justin Fleischacker is an associate in the Litigation practice of Paul Hastings and is based in the firm's New York office
- His practice focuses on complex litigation with an emphasis on intellectual property matters in the fields of pharmaceuticals and biotechnology
- Mr. Fleischacker received his J.D., cum laude, with a concentration in intellectual property from Benjamin N. Cardozo School of Law in 2018, where he served as an Articles Editor of the Cardozo Law Review
- He earned a Bachelor of Science in Engineering in Biomedical Engineering from the University of Connecticut in 2015
- Mr. Fleischacker is admitted to practice law in New York
Practice Areas Explained
Justin Fleischacker's Areas of Legal Practice
Each practice area below reflects the types of cases Justin Fleischacker handles, with a practical overview of what that area of law involves and how it may apply to your situation in New York.
Patent Law in New York
Justin Fleischacker is one of 20,632 patent attorneys indexed nationally. Browse patent attorneys in New York →
Real Estate Law in New York
Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.
Justin Fleischacker is one of 313,729 real estate attorneys indexed nationally. Browse real estate attorneys in New York →
Intellectual Property in New York
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Justin Fleischacker is one of 105,285 ip attorneys indexed nationally. Browse ip 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 Justin Fleischacker
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 Justin Fleischacker's practice in the field of patent, real estate, and ip.
Broad Practice Area Coverage
Covering patent, real estate, and ip, Justin Fleischacker 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 Justin Fleischacker attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues Justin Fleischacker Handles in New York
Below is a representative sample of the types of matters Justin Fleischacker has experience with under New York law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact Justin Fleischacker directly to discuss the specifics of your situation.
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How People Find Justin Fleischacker Online
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Justin Fleischacker's Practice Areas & Specializations
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