Atty. Brian Henry Obeirne

Atty. Brian Henry Obeirne

Brian Henry Obeirne is a lawyer practicing business law, finance, intellectual property and 4 other areas of law. Brian received a degree from Trinity Coll University, Dublin Ireland, UC Berkeley School of Law Boalt Hall, Berkeley CA, and has been licensed for 10 years.

Sioux Falls Sioux Falls 10 yrs experience 10 year
Call (206) 735-4730 Book Appointment

Profile Summary

About Brian Henry Obeirne at a glance

Brian Henry Obeirne is a business, ip, m&a, and internet attorney based in Sioux Falls, South Dakota. They have 10+ years of legal experience, licensed to practice since 2016. Admitted to practice in California (2016). Educated at Trinity Coll University, Dublin Ireland, UC Berkeley School of Law Boalt Hall, Berkeley CA (—). Serands clients in Sioux Falls, SD and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Brian Henry Obeirne is a lawyer practicing business law, finance, intellectual property and 4 other areas of law
  • Brian received a degree from Trinity Coll University, Dublin Ireland, UC Berkeley School of Law Boalt Hall, Berkeley CA, and has been licensed for 10 years
  • Brian practices in Sioux Falls, SD

Practice Areas Explained

Brian Henry Obeirne's Areas of Practice

Each practice area below reflects the types of cases Brian Henry Obeirne handles, with a brief overview of what that area of law covers.

Business & Corporate Law

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

Brian Henry Obeirne is one of 501,317 business attorneys indexed nationally. Browse business attorneys in South Dakota →

Intellectual Property

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

Brian Henry Obeirne is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in South Dakota →

Mergers & Acquisitions

Brian Henry Obeirne is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys in South Dakota →

Internet & Cyber Law

Internet and cyber lawyers for data breaches, online defamation, privacy law, and cybersecurity matters.

Brian Henry Obeirne is one of 17,958 internet attorneys indexed nationally. Browse internet 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 Sioux Falls 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 Sioux Falls or all attorneys in South Dakota.

Frequently Asked

Common questions about Brian Henry Obeirne

Where is Brian Henry Obeirne's law office located?
Brian Henry Obeirne's law practice is located in Sioux Falls, South Dakota. You can contact the office directly through this profile page.
What practice areas does Brian Henry Obeirne handle?
Brian Henry Obeirne focuses on business, ip, m&a, internet. Each practice area listed reflects experience handling cases of that type in South Dakota.
How long has Brian Henry Obeirne practiced law?
Brian Henry Obeirne has 10+ years of legal experience and has been licensed since 2016.
Where did Brian Henry Obeirne go to law school?
Brian Henry Obeirne earned their education at (—).
How can I contact Brian Henry Obeirne for a consultation?
You can contact Brian Henry Obeirne 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

Trinity Coll University, Dublin Ireland, UC Berkeley School of Law Boalt Hall, Berkeley CA
- In Progress

Bar Admissions

California
Admitted: 2016

Reviews

These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.