Atty. Mark Dean Seltzer

Atty. Mark Dean Seltzer

Mark Dean Seltzer is a lawyer practicing white collar crime, health care fraud, corporate investigations and 4 other areas of law. Mark received a B.A. degree from University of Pennsylvania in 1979, and has been licensed for 42 years.

Boston Boston 42 yrs experience 42 year
Call (857) 557-7930 Book Appointment

Profile Summary

About Mark Dean Seltzer at a glance

Mark Dean Seltzer is a Partner based in Boston, Massachusetts, practicing at Nixon Peabody LLP. They have 42+ years of legal experience, licensed to practice since 1984. Their practice focuses on criminal defense, business, white collar, litigation, and consumer. Admitted to practice in Pennsylvania (1984) and Massachusetts U.S. District Court, District of Massachusetts and U.S. Supreme Court (1990). Educated at Boston College (J.D., 1983) and University of Pennsylvania (B.A., 1979). Recognitions include AV Preeminent. Active member of Boston (Former Co-Chair, Steering Committee, Criminal Law Section) and American (Member: White Collar Crime Committee Criminal Laws Committee, Business Law Section) Bar Associations. Serands clients in Boston, MA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Dean Seltzer is a lawyer practicing white collar crime, health care fraud, corporate investigations and 4 other areas of law
  • Mark received a B.A. degree from University of Pennsylvania in 1979, and has been licensed for 42 years
  • Mark practices at Nixon Peabody LLP in Boston, MA

Practice Areas Explained

Mark Dean Seltzer's Areas of Practice

Each practice area below reflects the types of cases Mark Dean Seltzer handles, with a brief overview of what that area of law covers.

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Mark Dean Seltzer is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Massachusetts →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Mark Dean Seltzer is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Massachusetts →

White Collar Crimes

Mark Dean Seltzer is one of 20,025 white collar attorneys indexed nationally. Browse white collar attorneys in Massachusetts →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Mark Dean Seltzer is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Massachusetts →

Consumer Protection

Consumer protection attorneys for fraud, lemon law, debt harassment, and deceptive trade practices.

Mark Dean Seltzer is one of 50,607 consumer attorneys indexed nationally. Browse consumer attorneys in Massachusetts →

Jurisdictional Context

Why local counsel matters in Massachusetts

Practicing law in Massachusetts. Legal matters in Massachusetts are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Boston are typically filed in the local municipal court or the appropriate Massachusetts state district court, depending on subject matter and amount in controversy. An attorney licensed in Massachusetts 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 Massachusetts courts without local counsel or pro hac vice admission.

Looking for additional Massachusetts attorneys? Browse all attorneys in Boston or all attorneys in Massachusetts.

Frequently Asked

Common questions about Mark Dean Seltzer

Where is Mark Dean Seltzer's law office located?
Mark Dean Seltzer's law practice is located in Boston, Massachusetts. The firm is Nixon Peabody LLP. You can contact the office directly through this profile page.
What practice areas does Mark Dean Seltzer handle?
Mark Dean Seltzer focuses on criminal defense, business, white collar, litigation, consumer. Each practice area listed reflects experience handling cases of that type in Massachusetts.
How long has Mark Dean Seltzer practiced law?
Mark Dean Seltzer has 42+ years of legal experience and has been licensed since 1984.
Where did Mark Dean Seltzer go to law school?
Mark Dean Seltzer earned their education at (J.D., 1983); (B.A., 1979).
How can I contact Mark Dean Seltzer for a consultation?
You can contact Mark Dean Seltzer directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Mark Dean Seltzer received?
Mark Dean Seltzer's notable recognition includes: AV Preeminent.

Education

J.D.
Boston College
- 1983
B.A.
University of Pennsylvania
- 1979

Awards

AV Preeminent

Bar Admissions

Pennsylvania
Admitted: 1984
Massachusetts U.S. District Court, District of Massachusetts and U.S. Supreme Court
Admitted: 1990

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