Atty. William D. Spears

Atty. William D. Spears

William D. Spears is a lawyer practicing general practice, probate law, estate planning law and 3 other areas of law.

Onida Onida 69 yrs experience 69 year
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Profile Summary

About William D. Spears at a glance

William D. Spears is a probate, estate planning, business, and tax attorney based in Onida, South Dakota. They have 69+ years of legal experience, licensed to practice since 1957. Admitted to practice in South Dakota (1957). Educated at University of South Dakota (LL.B., 1957). Serands clients in Onida, SD and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William D. Spears is a lawyer practicing general practice, probate law, estate planning law and 3 other areas of law
  • William D. has been licensed for 69 years
  • William D. practices in Onida, SD

Practice Areas Explained

William D. Spears's Areas of Practice

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

Probate

William D. Spears is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in South Dakota →

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.

William D. Spears is one of 226,537 estate planning attorneys indexed nationally. Browse estate planning attorneys in South Dakota →

Business & Corporate Law

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

William D. Spears is one of 501,317 business attorneys indexed nationally. Browse business attorneys in South Dakota →

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

William D. Spears is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in South Dakota →

Jurisdictional Context

Why local counsel matters in South Dakota

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

Looking for additional South Dakota attorneys? Browse all attorneys in Onida or all attorneys in South Dakota.

Frequently Asked

Common questions about William D. Spears

Where is William D. Spears's law office located?
William D. Spears's law practice is located in Onida, South Dakota. You can contact the office directly through this profile page.
What practice areas does William D. Spears handle?
William D. Spears focuses on probate, estate planning, business, tax. Each practice area listed reflects experience handling cases of that type in South Dakota.
How long has William D. Spears practiced law?
William D. Spears has 69+ years of legal experience and has been licensed since 1957.
Where did William D. Spears go to law school?
William D. Spears earned their education at (LL.B., 1957).
How can I contact William D. Spears for a consultation?
You can contact William D. Spears 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

LL.B.
University of South Dakota
- 1957

Bar Admissions

South Dakota
Admitted: 1957

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