Atty. David O'Brien

Atty. David O'Brien

David O'Brien is a lawyer practicing real estate, environmental. David received a degree from University of Cambridge in 1978, and has been licensed for 42 years.

42 yrs experience 42 year
Call (416) 214-5265 Book Appointment

Profile Summary

About David O'Brien at a glance

David O'Brien is a real estate and environmental attorney. They have 42+ years of legal experience, licensed to practice since 1984. Admitted to practice in Ontario (1984). Educated at Osgoode Hall Law School of York University (LL.B., 1982) and University of Cambridge (Master, 1978).

Verified attorney profile · Updated June 2026

About

  • David O'Brien is a lawyer practicing real estate, environmental
  • David received a degree from University of Cambridge in 1978, and has been licensed for 42 years
  • David practices in Toronto, ON

Practice Areas Explained

David O'Brien's Areas of Practice

Each practice area below reflects the types of cases David O'Brien handles, with a brief overview of what that area of law covers.

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

David O'Brien is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

David O'Brien is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys →

Frequently Asked

Common questions about David O'Brien

What practice areas does David O'Brien handle?
David O'Brien focuses on real estate, environmental. Each practice area listed reflects experience handling cases of that type in their licensed jurisdictions.
How long has David O'Brien practiced law?
David O'Brien has 42+ years of legal experience and has been licensed since 1984.
Where did David O'Brien go to law school?
David O'Brien earned their education at (LL.B., 1982); (Master, 1978).
How can I contact David O'Brien for a consultation?
You can contact David O'Brien 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.

Practice Areas

Education

LL.B.
Osgoode Hall Law School of York University
- 1982
Master
University of Cambridge
- 1978

Bar Admissions

Ontario
Admitted: 1984

Reviews

These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.