Atty. Thomas D. Decker

Atty. Thomas D. Decker

Thomas D. Decker is a lawyer practicing civil practice, criminal defense, civil appeals and 5 other areas of law.

Chicago Chicago 63 yrs experience 63 year
Call (312) 481-8617 Book Appointment

Civil Appeals & More Attorney · Serving Chicago, IL · 63+ Years Experience

Profile Summary

About Thomas D. Decker at a Glance

Thomas D. Decker is a Member based in Chicago, Illinois, practicing at Thomas D. Decker and Associates, Ltd.. They have 63+ years of legal experience, licensed to practice since 1963. Their practice focuses on criminal defense, litigation, civil rights, elder law, and government. Admitted to practice in Illinois (1963). Educated at Northwestern University (J.D., 1963) and Lake Forest College (B.A., 1955). Recognitions include AV Preeminent. Active member of Chicago and Illinois State. Serves clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Thomas D. Decker

  • Thomas D. Decker is a lawyer practicing civil practice, criminal defense, civil appeals and 5 other areas of law
  • Thomas received a B.A. degree from Lake Forest College in 1955, and has been licensed for 63 years
  • Thomas practices at Thomas D. Decker and Associates, Ltd. in Chicago, IL

Practice Areas Explained

Thomas D. Decker's Areas of Legal Practice

Each practice area below reflects the types of cases Thomas D. Decker handles, with a practical overview of what that area of law involves and how it may apply to your situation in Chicago.

Criminal Defense in Chicago

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Thomas D. Decker is one of 212,605 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Illinois →

Civil Litigation in Chicago

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

Thomas D. Decker is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →

Civil Rights in Chicago

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

Thomas D. Decker is one of 69,634 civil rights attorneys indexed nationally. Browse civil rights attorneys in Illinois →

Elder Law in Chicago

Elder law attorneys for Medicaid planning, long-term care, guardianship, conservatorship, and elder abuse.

Thomas D. Decker is one of 52,999 elder law attorneys indexed nationally. Browse elder law attorneys in Illinois →

Government & Administrative Law in Chicago

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

Thomas D. Decker is one of 131,162 government attorneys indexed nationally. Browse government attorneys in Illinois →

Jurisdictional Context

Why Local Counsel Matters in Chicago

Practicing law in Illinois. Legal matters in Illinois are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Chicago are typically filed in the local municipal court or the appropriate Illinois state district court, depending on subject matter and amount in controversy. An attorney licensed in Illinois brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Illinois courts without local counsel or pro hac vice admission.

Chicago Courts and Legal Process

Choosing a Chicago-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

Looking for additional Illinois attorneys? Browse all attorneys in Chicago or all attorneys in Illinois.

Frequently Asked

Common Questions About Thomas D. Decker

Where is Thomas D. Decker's law office located?
Thomas D. Decker's law practice is located in Chicago, Illinois. The firm is Thomas D. Decker and Associates, Ltd.. You can contact the office directly through this profile page.
What practice areas does Thomas D. Decker handle?
Thomas D. Decker focuses on criminal defense, litigation, civil rights, elder law, government. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Thomas D. Decker practiced law?
Thomas D. Decker has 63+ years of legal experience and has been licensed since 1963.
Where did Thomas D. Decker go to law school?
Thomas D. Decker earned their education at (J.D., 1963); (B.A., 1955).
How can I contact Thomas D. Decker for a consultation?
You can contact Thomas D. Decker 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 Thomas D. Decker received?
Thomas D. Decker's notable recognition includes: AV Preeminent.

Professional Profile

Why Clients in Chicago Choose Thomas D. Decker

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Thomas D. Decker's practice in the field of criminal defense, litigation, civil rights, elder law, and government.

Decade-Tested Legal Experience

Thomas D. Decker brings 63+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Broad Practice Area Coverage

Covering criminal defense, litigation, and civil rights, Thomas D. Decker can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Chicago

A Chicago-based practice means Thomas D. Decker attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Search Reference

How People Find Thomas D. Decker Online

Prospective clients searching for legal help in Chicago commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Thomas D. Decker.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Thomas D. Decker directly.

Education & Law School Background

J.D.
Northwestern University
- 1963
B.A.
Lake Forest College
- 1955

Awards & Professional Honors

AV Preeminent

Bar Admissions & Licensed Jurisdictions

Illinois
Admitted: 1963

Client Reviews & Ratings — Thomas D. Decker

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