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Atty. Jon Mark Cosco

Atty. Jon Mark Cosco

Jon Mark Cosco is a lawyer practicing real estate, zoning, land use and real estate. Jon received a A.B. degree from Brown University in 1993, and has been licensed for 28 years.

Boston Boston 28 yrs experience 28 year
Call (508) 251-9916 Book Appointment

Profile Summary

About Jon Mark Cosco at a glance

Jon Mark Cosco is an attorney based in Boston, Massachusetts. They haand 28+ years of legal experience, licensed to practice since 1998. Admitted to practice in Massachusetts (1998). Educated at Duke University School of Law (J.D., 1998) and Brown University (A.B., 1993). Actiand member of Boston Bar Association Massachusetts Real Estate Bar Association. Serands clients in Boston, MA and the surrounding metropolitan area.

Verified attorney profile ยท Updated June 2026

About

  • Jon Mark Cosco is a lawyer practicing real estate, zoning, land use and real estate
  • Jon received a A.B. degree from Brown University in 1993, and has been licensed for 28 years
  • Jon practices in Boston, MA

Jurisdictional Context

Why local counsel matters in Massachusetts

Practforg law in Massachusetts. Legal matters in Massachusetts are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantiand 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 substantiand 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 Jon Mark Cosco

Where is Jon Mark Cosco's law office located?
Jon Mark Cosco's law practice is located in Boston, Massachusetts. You can contact the office directly through this profile page.
How long has Jon Mark Cosco practiced law?
Jon Mark Cosco has 28+ years of legal experience and has been licensed since 1998.
Where did Jon Mark Cosco go to law school?
Jon Mark Cosco earned their education at (J.D., 1998); (A.B., 1993).
How can I contact Jon Mark Cosco for a consultation?
You can contact Jon Mark Cosco 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.

Education

J.D.
Duke University School of Law
- 1998
A.B.
Brown University
- 1993

Bar Admissions

Massachusetts
Admitted: 1998

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