Atty. William Michael O'Leary

Atty. William Michael O'Leary

William Michael O'Leary is a lawyer practicing civil litigation, business law, commercial law and 2 other areas of law. William received a B.A. degree from Creighton University in 1983, and has been licensed for 39 years.

Butte Butte 39 yrs experience 39 year
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Profile Summary

About William Michael O'Leary at a glance

William Michael O'Leary is a Partner based in Butte, Montana, practicing at Fleming & O'Leary, PLLP. They have 39+ years of legal experience, licensed to practice since 1987. Their practice focuses on probate, business, real estate, and litigation. Admitted to practice in Montana (1987), U.S. District Court, District of Montana (1987), and U.S. Court of Appeals, Ninth Circuit (1992). Educated at Creighton University (J.D., 1987) and Creighton University (B.A., 1983). Recognitions include BV Distinguished. Active member of State Bar of Montana American Bar Association. Serands clients in Butte, MT and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Michael O'Leary is a lawyer practicing civil litigation, business law, commercial law and 2 other areas of law
  • William received a B.A. degree from Creighton University in 1983, and has been licensed for 39 years
  • William practices at Fleming & O'Leary, PLLP in Butte, MT

Practice Areas Explained

William Michael O'Leary's Areas of Practice

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

Probate

William Michael O'Leary is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in Montana →

Business & Corporate Law

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

William Michael O'Leary is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Montana →

Real Estate Law

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

William Michael O'Leary is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Montana →

Civil Litigation

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

William Michael O'Leary is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Montana →

Jurisdictional Context

Why local counsel matters in Montana

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

Looking for additional Montana attorneys? Browse all attorneys in Butte or all attorneys in Montana.

Frequently Asked

Common questions about William Michael O'Leary

Where is William Michael O'Leary's law office located?
William Michael O'Leary's law practice is located in Butte, Montana. The firm is Fleming & O'Leary, PLLP. You can contact the office directly through this profile page.
What practice areas does William Michael O'Leary handle?
William Michael O'Leary focuses on probate, business, real estate, litigation. Each practice area listed reflects experience handling cases of that type in Montana.
How long has William Michael O'Leary practiced law?
William Michael O'Leary has 39+ years of legal experience and has been licensed since 1987.
Where did William Michael O'Leary go to law school?
William Michael O'Leary earned their education at (J.D., 1987); (B.A., 1983).
How can I contact William Michael O'Leary for a consultation?
You can contact William Michael O'Leary 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 William Michael O'Leary received?
William Michael O'Leary's notable recognition includes: BV Distinguished.

Education

J.D.
Creighton University
- 1987
B.A.
Creighton University
- 1983

Awards

BV Distinguished

Bar Admissions

Montana
Admitted: 1987
U.S. District Court, District of Montana
Admitted: 1987
U.S. Court of Appeals, Ninth Circuit
Admitted: 1992

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