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Atty. Douglas E. Onsi

Atty. Douglas E. Onsi

Douglas E. Onsi is a lawyer.

Cambridge Cambridge 33 yrs experience 33 year
Call (857) 416-1942 Book Appointment

Profile Summary

About Douglas E. Onsi at a glance

Douglas E. Onsi is a HealthCare Ventures LLC based in Cambridge, Massachusetts. They haand 33+ years of legal experience, licensed to practice since 1993. Admitted to practice in Massachusetts (1993). Educated at University of Michigan (J.D., 1993) and Cornell University (B.S., 1990). Serands clients in Cambridge, MA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Douglas E. Onsi is a lawyer
  • Douglas received a B.S. degree from Cornell University in 1990, and has been licensed for 33 years
  • Douglas practices in Cambridge, 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 Cambridge 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 Cambridge or all attorneys in Massachusetts.

Frequently Asked

Common questions about Douglas E. Onsi

Where is Douglas E. Onsi's law office located?
Douglas E. Onsi's law practice is located in Cambridge, Massachusetts. You can contact the office directly through this profile page.
How long has Douglas E. Onsi practiced law?
Douglas E. Onsi has 33+ years of legal experience and has been licensed since 1993.
Where did Douglas E. Onsi go to law school?
Douglas E. Onsi earned their education at (J.D., 1993); (B.S., 1990).
How can I contact Douglas E. Onsi for a consultation?
You can contact Douglas E. Onsi 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.
University of Michigan
- 1993
B.S.
Cornell University
- 1990

Bar Admissions

Massachusetts
Admitted: 1993

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