Atty. William C. Du Val

Atty. William C. Du Val

Mr. William C.

Portland Portland 34 yrs experience 34 year
Call (253) 540-4429 Book Appointment

Profile Summary

About William C. Du Val at a glance

William C. Du Val is a Member based in Portland, Oregon, practicing at Slinde Nelson, LLC. They have 34+ years of legal experience, licensed to practice since 1992. Their practice focuses on trusts, business, ip, and securities. Admitted to practice in Oregon (1992) and Washington (Inactive) (1994). Educated at Willamette University (J.D., 1992) and Whitworth College (B.A., 1981). Active member of Oregon State Bar. Serands clients in Portland, OR and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. William C. Du Val is a lawyer practicing trusts and estates, business law, securities and 1 other area of law
  • William C. received a B.A. degree from Whitworth College in 1981, and has been licensed for 34 years
  • William C. practices at Slinde Nelson, LLC in Portland, OR

Practice Areas Explained

William C. Du Val's Areas of Practice

Each practice area below reflects the types of cases William C. Du Val handles, with a brief overview of what that area of law covers.

Trusts

William C. Du Val is one of 104,172 trusts attorneys indexed nationally. Browse trusts attorneys in Oregon →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

William C. Du Val is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Oregon →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

William C. Du Val is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Oregon →

Securities Law

William C. Du Val is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in Oregon →

Jurisdictional Context

Why local counsel matters in Oregon

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

Looking for additional Oregon attorneys? Browse all attorneys in Portland or all attorneys in Oregon.

Frequently Asked

Common questions about William C. Du Val

Where is William C. Du Val's law office located?
William C. Du Val's law practice is located in Portland, Oregon. The firm is Slinde Nelson, LLC. You can contact the office directly through this profile page.
What practice areas does William C. Du Val handle?
William C. Du Val focuses on trusts, business, ip, securities. Each practice area listed reflects experience handling cases of that type in Oregon.
How long has William C. Du Val practiced law?
William C. Du Val has 34+ years of legal experience and has been licensed since 1992.
Where did William C. Du Val go to law school?
William C. Du Val earned their education at (J.D., 1992); (B.A., 1981).
How can I contact William C. Du Val for a consultation?
You can contact William C. Du Val 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.
Willamette University
- 1992
B.A.
Whitworth College
- 1981

Bar Admissions

Oregon
Admitted: 1992
Washington (Inactive)
Admitted: 1994

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