Atty. Thad Nathaniel Leach

Atty. Thad Nathaniel Leach

Thad Nathaniel Leach is a lawyer practicing corporate & incorporation, business law, intellectual property and 3 other areas of law. Thad received a B.S. degree from Southern Illinois University in 1989, and has been licensed for 32 years.

St. Louis St. Louis 32 yrs experience 32 year
Call (636) 442-0963 Book Appointment

Profile Summary

About Thad Nathaniel Leach at a glance

Thad Nathaniel Leach is a Member based in St. Louis, Missouri, practicing at Leach Firm, LLC. They have 32+ years of legal experience, licensed to practice since 1994. Their practice focuses on formation, business, ip, government, and health care. Admitted to practice in Missouri (1994) and Illinois (1995). Educated at Tulane University (J.D., 1994) and Southern Illinois University (B.S., 1989). Recognitions include AV Preeminent. Active member of Illinois State Bar Association The Missouri Bar International Trademark Association. Serands clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Thad Nathaniel Leach is a lawyer practicing corporate & incorporation, business law, intellectual property and 3 other areas of law
  • Thad received a B.S. degree from Southern Illinois University in 1989, and has been licensed for 32 years
  • Thad practices at Leach Firm, LLC in St. Louis, MO

Practice Areas Explained

Thad Nathaniel Leach's Areas of Practice

Each practice area below reflects the types of cases Thad Nathaniel Leach handles, with a brief overview of what that area of law covers.

Business Formation

Thad Nathaniel Leach is one of 35,584 formation attorneys indexed nationally. Browse formation attorneys in Missouri →

Business & Corporate Law

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

Thad Nathaniel Leach is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Missouri →

Intellectual Property

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

Thad Nathaniel Leach is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Missouri →

Government & Administrative Law

Attorneys for administrative law, agency hearings, government contracts, licensing, and public benefits.

Thad Nathaniel Leach is one of 132,225 government attorneys indexed nationally. Browse government attorneys in Missouri →

Health Care Law

Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.

Thad Nathaniel Leach is one of 66,735 health care attorneys indexed nationally. Browse health care attorneys in Missouri →

Jurisdictional Context

Why local counsel matters in Missouri

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

Looking for additional Missouri attorneys? Browse all attorneys in St. Louis or all attorneys in Missouri.

Frequently Asked

Common questions about Thad Nathaniel Leach

Where is Thad Nathaniel Leach's law office located?
Thad Nathaniel Leach's law practice is located in St. Louis, Missouri. The firm is Leach Firm, LLC. You can contact the office directly through this profile page.
What practice areas does Thad Nathaniel Leach handle?
Thad Nathaniel Leach focuses on formation, business, ip, government, health care. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Thad Nathaniel Leach practiced law?
Thad Nathaniel Leach has 32+ years of legal experience and has been licensed since 1994.
Where did Thad Nathaniel Leach go to law school?
Thad Nathaniel Leach earned their education at (J.D., 1994); (B.S., 1989).
How can I contact Thad Nathaniel Leach for a consultation?
You can contact Thad Nathaniel Leach 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 Thad Nathaniel Leach received?
Thad Nathaniel Leach's notable recognition includes: AV Preeminent.

Education

J.D.
Tulane University
- 1994
B.S.
Southern Illinois University
- 1989

Awards

AV Preeminent

Bar Admissions

Missouri
Admitted: 1994
Illinois
Admitted: 1995

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