Atty. Mark E. Costello
Mark E. Costello is a lawyer practicing general corporate, securitizations.
General Corporate & More Attorney · Serving Parsippany, NJ · 42+ Years Experience
Profile Summary
About Mark E. Costello at a Glance
Mark E. Costello is a business attorney based in Parsippany, New Jersey. They have 42+ years of legal experience, licensed to practice since 1984. Admitted to practice in New York (1984), U.S. District Court, Eastern District of New York (1993), U.S. District Court, Southern District of New York (1993), and New Jersey (2005). Educated at St. John's University (J.D., 1983) and Long Island University (M.S. Seton, 1977). Serves clients in Parsippany, NJ and the surrounding metropolitan area.
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About Mark E. Costello
- Mark E. Costello is a lawyer practicing general corporate, securitizations
- Mark E. received a M.S. degree from Long Island University in 1977, and has been licensed for 42 years
- Mark E. practices in Parsippany, NJ
Practice Areas Explained
Mark E. Costello's Areas of Legal Practice
Each practice area below reflects the types of cases Mark E. Costello handles, with a practical overview of what that area of law involves and how it may apply to your situation in Parsippany.
Business & Corporate Law in Parsippany
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Mark E. Costello is one of 497,491 business attorneys indexed nationally. Browse business attorneys in New Jersey →
Jurisdictional Context
Why Local Counsel Matters in Parsippany
Practicing law in New Jersey. Legal matters in New Jersey are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Parsippany are typically filed in the local municipal court or the appropriate New Jersey state district court, depending on subject matter and amount in controversy. An attorney licensed in New Jersey 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 Jersey courts without local counsel or pro hac vice admission.
Parsippany Courts and Legal Process
Choosing a Parsippany-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.
Looking for additional New Jersey attorneys? Browse all attorneys in Parsippany or all attorneys in New Jersey.
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Professional Profile
Why Clients in Parsippany Choose Mark E. Costello
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 Mark E. Costello's practice in the field of business.
Decade-Tested Legal Experience
Mark E. Costello brings 42+ 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 York, U.S. District Court, Eastern District of New York, and U.S. District Court, Southern District of New York, Mark E. Costello can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Focused Business Practice
Concentrating on business means Mark E. Costello's knowledge of relevant statutes, case law, and procedural nuances stays current — unlike generalist practices that spread attention across unrelated fields.
Local Presence in Parsippany
A Parsippany-based practice means Mark E. Costello 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 Mark E. Costello Handles in Parsippany
Below is a representative sample of the types of matters Mark E. Costello has experience with under New Jersey 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 Mark E. Costello directly to discuss the specifics of your situation.
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How People Find Mark E. Costello Online
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Mark E. Costello's Practice Areas & Specializations
Education & Law School Background
Bar Admissions & Licensed Jurisdictions
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