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Atty. Cornelius John Callahan

Atty. Cornelius John Callahan

Cornelius John Callahan is a lawyer practicing civil litigation, public entity, law enforcement and civil right and 4 other areas of law. Cornelius received a B.A. degree from George Washington University in 1989, and has been licensed for 31 years.

Rancho Cordova Rancho Cordova 31 yrs experience 31 year
Call (279) 255-0384 Book Appointment

Profile Summary

About Cornelius John Callahan at a glance

Cornelius John Callahan is a business, product liability, litigation, and civil rights attorney based in Rancho Cordova, California. They have 31+ years of legal experience, licensed to practice since 1995. Admitted to practice in New Jersey (1995), New York (1996), U.S. District Court, Southern District of New York (1996), and U.S. District Court, Eastern District of New York (1996). Educated at Pace University (J.D., 1995) and George Washington University (B.A., 1989). Recognitions include AV Preeminent. Active member of Associations Mr, Callahan is a member of the State Bar of California, Connecticut, New Jersey, and New York, and Mr. Serands clients in Rancho Cordova, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Cornelius John Callahan is a lawyer practicing civil litigation, public entity, law enforcement and civil right and 4 other areas of law
  • Cornelius received a B.A. degree from George Washington University in 1989, and has been licensed for 31 years
  • Cornelius practices in Rancho Cordova, CA

Practice Areas Explained

Cornelius John Callahan's Areas of Practice

Each practice area below reflects the types of cases Cornelius John Callahan 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.

Cornelius John Callahan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

Product Liability

Cornelius John Callahan is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in California →

Civil Litigation

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

Cornelius John Callahan is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in California →

Civil Rights

Civil rights attorneys for discrimination, police misconduct, constitutional rights, and civil liberties cases.

Cornelius John Callahan is one of 70,245 civil rights attorneys indexed nationally. Browse civil rights attorneys in California →

Jurisdictional Context

Why local counsel matters in California

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

Looking for additional California attorneys? Browse all attorneys in Rancho Cordova or all attorneys in California.

Frequently Asked

Common questions about Cornelius John Callahan

Where is Cornelius John Callahan's law office located?
Cornelius John Callahan's law practice is located in Rancho Cordova, California. You can contact the office directly through this profile page.
What practice areas does Cornelius John Callahan handle?
Cornelius John Callahan focuses on business, product liability, litigation, civil rights. Each practice area listed reflects experience handling cases of that type in California.
How long has Cornelius John Callahan practiced law?
Cornelius John Callahan has 31+ years of legal experience and has been licensed since 1995.
Where did Cornelius John Callahan go to law school?
Cornelius John Callahan earned their education at (J.D., 1995); (B.A., 1989).
How can I contact Cornelius John Callahan for a consultation?
You can contact Cornelius John Callahan 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 Cornelius John Callahan received?
Cornelius John Callahan's notable recognition includes: AV Preeminent.

Education

J.D.
Pace University
- 1995
B.A.
George Washington University
- 1989

Awards

AV Preeminent

Bar Admissions

New Jersey
Admitted: 1995
New York
Admitted: 1996
U.S. District Court, Southern District of New York
Admitted: 1996
U.S. District Court, Eastern District of New York
Admitted: 1996
Connecticut
Admitted: 1996
U.S. District Court, District of New Jersey and District of Connecticut
Admitted: 1997
California
Admitted: 1999

Reviews

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