Atty. Michael Joseph Costello

Atty. Michael Joseph Costello

Mr. Michael Joseph Costello is a lawyer practicing international law, commercial law, corporate and securities.

St. Louis St. Louis 49 yrs experience 49 year
Call (771) 240-4258 Book Appointment

Profile Summary

About Michael Joseph Costello at a glance

Michael Joseph Costello is a business and international attorney based in St. Louis, Missouri. They have 49+ years of legal experience, licensed to practice since 1977. Admitted to practice in Missouri (1977), District of Columbia (1979), and U.S. Supreme Court (1982). Educated at St. Louis University (J.D., 1977) and University of Missouri-Columbia (B.A., 1974). Recognitions include AV Preeminent. Serands clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Michael Joseph Costello is a lawyer practicing international law, commercial law, corporate and securities
  • Michael received a B.A. degree from University of Missouri-Columbia in 1974, and has been licensed for 49 years
  • Michael practices in St. Louis, MO

Practice Areas Explained

Michael Joseph Costello's Areas of Practice

Each practice area below reflects the types of cases Michael Joseph Costello 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.

Michael Joseph Costello is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Missouri →

International Law

International law attorneys for cross-border transactions, trade, foreign investment, and treaties.

Michael Joseph Costello is one of 40,133 international attorneys indexed nationally. Browse international 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 Michael Joseph Costello

Where is Michael Joseph Costello's law office located?
Michael Joseph Costello's law practice is located in St. Louis, Missouri. You can contact the office directly through this profile page.
What practice areas does Michael Joseph Costello handle?
Michael Joseph Costello focuses on business, international. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Michael Joseph Costello practiced law?
Michael Joseph Costello has 49+ years of legal experience and has been licensed since 1977.
Where did Michael Joseph Costello go to law school?
Michael Joseph Costello earned their education at (J.D., 1977); (B.A., 1974).
How can I contact Michael Joseph Costello for a consultation?
You can contact Michael Joseph Costello 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 Michael Joseph Costello received?
Michael Joseph Costello's notable recognition includes: AV Preeminent.

Education

J.D.
St. Louis University
- 1977
B.A.
University of Missouri-Columbia
- 1974

Awards

AV Preeminent

Bar Admissions

Missouri
Admitted: 1977
District of Columbia
Admitted: 1979
U.S. Supreme Court
Admitted: 1982

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