Atty. Mark Hamilton Jr.

Atty. Mark Hamilton Jr.

Mark Hamilton Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships), Entertainment and Sports Law and Intellectual Property Law. Mark, who practices law in Milwaukee, Wisconsin, has been recognized since 2026.

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Profile Summary

About Mark Hamilton Jr. at a glance

Mark Hamilton Jr. is a business, real estate, ip, and entertainment attorney based in Milwaukee, Wisconsin, practicing at O'Neil, Cannon, Hollman, DeJong & Laing SC. Educated at Marquette University (J.D., 2020). Recognitions include Best Lawyers in America — Business Organizations (including LLCs and Partnerships) (2026), Best Lawyers in America — Entertainment and Sports Law (2026), and Best Lawyers in America — Intellectual Property Law (2026). Serands clients in Milwaukee, WI and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Hamilton Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships), Entertainment and Sports Law and Intellectual Property Law
  • Mark, who practices law in Milwaukee, Wisconsin, has been recognized since 2026
  • This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark is held by other top lawyers in the same geographic and legal practice area

Practice Areas Explained

Mark Hamilton Jr.'s Areas of Practice

Each practice area below reflects the types of cases Mark Hamilton Jr. 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.

Mark Hamilton Jr. is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Wisconsin →

Real Estate Law

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

Mark Hamilton Jr. is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Wisconsin →

Intellectual Property

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

Mark Hamilton Jr. is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Wisconsin →

Entertainment & Sports Law

Entertainment lawyers for music, film, sports contracts, talent representation, and IP licensing.

Mark Hamilton Jr. is one of 45,946 entertainment attorneys indexed nationally. Browse entertainment attorneys in Wisconsin →

Jurisdictional Context

Why local counsel matters in Wisconsin

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

Looking for additional Wisconsin attorneys? Browse all attorneys in Milwaukee or all attorneys in Wisconsin.

Frequently Asked

Common questions about Mark Hamilton Jr.

Where is Mark Hamilton Jr.'s law office located?
Mark Hamilton Jr.'s law practice is located in Milwaukee, Wisconsin. The firm is O'Neil, Cannon, Hollman, DeJong & Laing SC. You can contact the office directly through this profile page.
What practice areas does Mark Hamilton Jr. handle?
Mark Hamilton Jr. focuses on business, real estate, ip, entertainment. Each practice area listed reflects experience handling cases of that type in Wisconsin.
Where did Mark Hamilton Jr. go to law school?
Mark Hamilton Jr. earned their education at (J.D., 2020).
How can I contact Mark Hamilton Jr. for a consultation?
You can contact Mark Hamilton Jr. 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 Mark Hamilton Jr. received?
Mark Hamilton Jr.'s notable recognition includes: Best Lawyers in America — Business Organizations (including LLCs and Partnerships); Best Lawyers in America — Entertainment and Sports Law; Best Lawyers in America — Intellectual Property Law.

Education

J.D.
Marquette University
- 2020

Awards

Best Lawyers in America — Business Organizations (including LLCs and Partnerships)
- 2026
Best Lawyers in America — Entertainment and Sports Law
- 2026
Best Lawyers in America — Intellectual Property Law
- 2026

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