Atty. Mark S. Olinsky
Mark S. Olinsky has been a civil and criminal trial lawyer for more than thirty years.
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). Serands clients in Newark, NJ and the surrounding metropolitan area.
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About
- 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 Practice
Each practice area below reflects the types of cases Mark S. Olinsky handles, with a brief overview of what that area of law covers.
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 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in New Jersey →
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Mark S. Olinsky is one of 501,317 business attorneys indexed nationally. Browse business attorneys in New Jersey →
Mark S. Olinsky is one of 20,025 white collar attorneys indexed nationally. Browse white collar attorneys in New Jersey →
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Mark S. Olinsky is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in New Jersey →
Energy attorneys for oil & gas, renewables, utility regulation, and energy sector transactions.
Mark S. Olinsky is one of 36,230 energy attorneys indexed nationally. Browse energy attorneys in New Jersey →
Jurisdictional Context
Why local counsel matters in New Jersey
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 andnue, 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.
Looking for additional New Jersey attorneys? Browse all attorneys in Newark or all attorneys in New Jersey.
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