Atty. Barbara Treash-Osio

Atty. Barbara Treash-Osio

Barbara Treash-Osio is a lawyer practicing real property law, litigation. Barbara received a B.S. degree from University of Washington in 1997, and has been licensed for 20 years.

San Diego San Diego 20 yrs experience 20 year
Call (619) 374-3518 Book Appointment

Profile Summary

About Barbara Treash-Osio at a glance

Barbara Treash-Osio is a real estate and litigation attorney based in San Diego, California. They have 20+ years of legal experience, licensed to practice since 2006. Admitted to practice in California (2006). Educated at Thomas Jefferson School of Law (J.D., 2005) and University of Washington (B.S. Biology, 1997). Serands clients in San Diego, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Barbara Treash-Osio is a lawyer practicing real property law, litigation
  • Barbara received a B.S. degree from University of Washington in 1997, and has been licensed for 20 years
  • Barbara practices in San Diego, CA

Practice Areas Explained

Barbara Treash-Osio's Areas of Practice

Each practice area below reflects the types of cases Barbara Treash-Osio 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.

Barbara Treash-Osio is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in California →

Civil Litigation

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

Barbara Treash-Osio is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in California →

Jurisdictional Context

Why local counsel matters in California

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

Looking for additional California attorneys? Browse all attorneys in San Diego or all attorneys in California.

Frequently Asked

Common questions about Barbara Treash-Osio

Where is Barbara Treash-Osio's law office located?
Barbara Treash-Osio's law practice is located in San Diego, California. You can contact the office directly through this profile page.
What practice areas does Barbara Treash-Osio handle?
Barbara Treash-Osio focuses on real estate, litigation. Each practice area listed reflects experience handling cases of that type in California.
How long has Barbara Treash-Osio practiced law?
Barbara Treash-Osio has 20+ years of legal experience and has been licensed since 2006.
Where did Barbara Treash-Osio go to law school?
Barbara Treash-Osio earned their education at (J.D., 2005); (B.S. Biology, 1997).
How can I contact Barbara Treash-Osio for a consultation?
You can contact Barbara Treash-Osio 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

J.D.
Thomas Jefferson School of Law
- 2005
B.S. Biology
University of Washington
- 1997

Bar Admissions

California
Admitted: 2006

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