Atty. David A. Leen

Atty. David A. Leen

David A. Leen is a lawyer practicing general civil litigation, consumer finance, class actions and 6 other areas of law.

La Conner La Conner 55 yrs experience 55 year
Call (425) 669-0578 Book Appointment

Profile Summary

About David A. Leen at a glance

David A. Leen is a Member based in La Conner, Washington, practicing at Leen & O'Sullivan, PLLC. They have 55+ years of legal experience, licensed to practice since 1971. Their practice focuses on estate planning, real estate, bankruptcy, class action, and zoning. Admitted to practice in Washington (1971). Educated at University of Oregon (J.D., 1971) and Beloit College (B.A. Government, 1968). Recognitions include AV Preeminent. Active member of Washington State Bar Association. Serands clients in La Conner, WA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • David A. Leen is a lawyer practicing general civil litigation, consumer finance, class actions and 6 other areas of law
  • David received a B.A. degree from Beloit College in 1968, and has been licensed for 55 years
  • David practices at Leen & O'Sullivan, PLLC in La Conner, WA and 1 other location

Practice Areas Explained

David A. Leen's Areas of Practice

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

Estate Planning & Probate

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

David A. Leen is one of 226,537 estate planning attorneys indexed nationally. Browse estate planning attorneys in Washington →

Real Estate Law

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

David A. Leen is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Washington →

Bankruptcy & Debt

A bankruptcy attorney can help you eliminate debt, stop creditor harassment, and protect your home through Chapter 7 or Chapter 13.

David A. Leen is one of 105,321 bankruptcy attorneys indexed nationally. Browse bankruptcy attorneys in Washington →

Class Action

David A. Leen is one of 26,424 class action attorneys indexed nationally. Browse class action attorneys in Washington →

Land Use & Zoning

David A. Leen is one of 40,226 zoning attorneys indexed nationally. Browse zoning attorneys in Washington →

Jurisdictional Context

Why local counsel matters in Washington

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

Looking for additional Washington attorneys? Browse all attorneys in La Conner or all attorneys in Washington.

Frequently Asked

Common questions about David A. Leen

Where is David A. Leen's law office located?
David A. Leen's law practice is located in La Conner, Washington. The firm is Leen & O'Sullivan, PLLC. You can contact the office directly through this profile page.
What practice areas does David A. Leen handle?
David A. Leen focuses on estate planning, real estate, bankruptcy, class action, zoning. Each practice area listed reflects experience handling cases of that type in Washington.
How long has David A. Leen practiced law?
David A. Leen has 55+ years of legal experience and has been licensed since 1971.
Where did David A. Leen go to law school?
David A. Leen earned their education at (J.D., 1971); (B.A. Government, 1968).
How can I contact David A. Leen for a consultation?
You can contact David A. Leen 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 David A. Leen received?
David A. Leen's notable recognition includes: AV Preeminent.

Education

J.D.
University of Oregon
- 1971
B.A. Government
Beloit College
- 1968

Awards

AV Preeminent

Bar Admissions

Washington
Admitted: 1971

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