Atty. John Peter Mastando
John Peter Mastando is a lawyer practicing class action, antitrust / trade law, bankruptcy / chapter 11 and 2 other areas of law. John received a B.A. degree from Columbia College in 1993, and has been licensed for 29 years.
Antitrust & Trade Law & More Attorney · Serving New York, NY · 29+ Years Experience
Profile Summary
About John Peter Mastando at a Glance
John Peter Mastando is a Litigation Partner based in New York, New York, practicing at Weil, Gotshal & Manges LLP. They have 29+ years of legal experience, licensed to practice since 1997. Their practice focuses on business, bankruptcy, chapter 11, class action, and litigation. Admitted to practice in New Jersey (1997) and New York U.S. Court of Appeals Second and Third Circuits U.S. District Court, Southern District of N (1997). Educated at Columbia University Law (J.D., 1996) and Columbia College (B.A., 1993). Serves clients in New York, NY and the surrounding metropolitan area.
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About John Peter Mastando
- John Peter Mastando is a lawyer practicing class action, antitrust / trade law, bankruptcy / chapter 11 and 2 other areas of law
- John received a B.A. degree from Columbia College in 1993, and has been licensed for 29 years
- John practices at Weil, Gotshal & Manges LLP in New York, NY
Practice Areas Explained
John Peter Mastando's Areas of Legal Practice
Each practice area below reflects the types of cases John Peter Mastando handles, with a practical overview of what that area of law involves and how it may apply to your situation in New York.
Business & Corporate Law in New York
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
John Peter Mastando is one of 497,491 business attorneys indexed nationally. Browse business attorneys in New York →
Bankruptcy & Debt in New York
A bankruptcy attorney can help you eliminate debt, stop creditor harassment, and protect your home through Chapter 7 or Chapter 13.
John Peter Mastando is one of 104,458 bankruptcy attorneys indexed nationally. Browse bankruptcy attorneys in New York →
Chapter 11 Bankruptcy in New York
John Peter Mastando is one of 5,795 chapter 11 attorneys indexed nationally. Browse chapter 11 attorneys in New York →
Class Action in New York
John Peter Mastando is one of 26,226 class action attorneys indexed nationally. Browse class action attorneys in New York →
Civil Litigation in New York
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
John Peter Mastando is one of 450,751 litigation attorneys indexed nationally. Browse litigation 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 John Peter Mastando
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 John Peter Mastando's practice in the field of business, bankruptcy, chapter 11, class action, and litigation.
Decade-Tested Legal Experience
John Peter Mastando brings 29+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in New Jersey and New York U.S. Court of Appeals Second and Third Circuits U.S. District Court, Southern District of N, John Peter Mastando can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering business, bankruptcy, and chapter 11, John Peter Mastando 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 John Peter Mastando 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 John Peter Mastando Handles in New York
Below is a representative sample of the types of matters John Peter Mastando 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 John Peter Mastando directly to discuss the specifics of your situation.
Search Reference
How People Find John Peter Mastando Online
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John Peter Mastando's Practice Areas & Specializations
Education & Law School Background
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