Atty. Mark S. Olinsky
Mark S. Olinsky has been a civil and criminal trial lawyer for more than thirty years.
Commercial Litigation & More Attorney · Serving Newark, NJ
Profile Summary
About Mark S. Olinsky at a Glance
Mark S. Olinsky is a criminal defense, business, white collar, litigation, and energy attorney based in Newark, New Jersey, practicing at Sills Cummis & Gross PC. Admitted to practice in New Jersey, New Jersey and New York, New York. Educated at Harvard University (J.D) and Yale University (B.A.). Recognitions include Best Lawyers in America — Commercial Litigation (2026), Best Lawyers in America — Criminal Defense: White-Collar (2026), and Best Lawyers in America — Litigation - Regulatory Enforcement (SEC, Telecom, Energy) (2026). Serves clients in Newark, NJ and the surrounding metropolitan area.
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About Mark S. Olinsky
- Mark S. Olinsky has been a civil and criminal trial lawyer for more than thirty years
- He served as a federal prosecutor in the Office of U.S
- Attorney Samuel A. Alito, Jr. and is Past President of the Association of the Federal Bar of New Jersey
- Mr. Olinsky’s diverse caseload includes complex business disputes, health care litigation, complex commercial landlord-tenant litigation, and white collar defense
- His courtroom experience includes many jury and bench trials, arbitrations and appeals, and his expertise includes defense of federal and state RICO actions
Practice Areas Explained
Mark S. Olinsky's Areas of Legal Practice
Each practice area below reflects the types of cases Mark S. Olinsky handles, with a practical overview of what that area of law involves and how it may apply to your situation in Newark.
Criminal Defense in Newark
A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.
Mark S. Olinsky is one of 212,605 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in New Jersey →
Business & Corporate Law in Newark
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Mark S. Olinsky is one of 497,491 business attorneys indexed nationally. Browse business attorneys in New Jersey →
White Collar Crimes in Newark
Mark S. Olinsky is one of 19,824 white collar attorneys indexed nationally. Browse white collar attorneys in New Jersey →
Civil Litigation in Newark
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Mark S. Olinsky is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in New Jersey →
Energy & Utilities Law in Newark
Energy attorneys for oil & gas, renewables, utility regulation, and energy sector transactions.
Mark S. Olinsky is one of 35,985 energy attorneys indexed nationally. Browse energy attorneys in New Jersey →
Jurisdictional Context
Why Local Counsel Matters in Newark
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 Newark 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.
Newark Courts and Legal Process
Choosing a Newark-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 Newark or all attorneys in New Jersey.
Frequently Asked
Common Questions About Mark S. Olinsky
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Professional Profile
Why Clients in Newark Choose Mark S. Olinsky
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 S. Olinsky's practice in the field of criminal defense, business, white collar, litigation, and energy.
Multi-State Bar Admission
Licensed in New Jersey, New Jersey and New York, New York, Mark S. Olinsky can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering criminal defense, business, and white collar, Mark S. Olinsky can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Newark
A Newark-based practice means Mark S. Olinsky 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 S. Olinsky Handles in Newark
Below is a representative sample of the types of matters Mark S. Olinsky 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 S. Olinsky directly to discuss the specifics of your situation.
Search Reference
How People Find Mark S. Olinsky Online
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Mark S. Olinsky's Practice Areas & Specializations
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Bar Admissions & Licensed Jurisdictions
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