Atty. Timothy Patrick Callahan

Atty. Timothy Patrick Callahan

Timothy Patrick Callahan is a lawyer practicing construction / development, contracts / agreements, sustainability and global climate change and 3 other areas of law. Timothy received a B.A. degree from University of Michigan in 1985, and has been licensed for 38 years.

Chicago Chicago 38 J. Erfahrung 38 year
Call (312) 481-8617 Book Appointment

Profile Summary

About Timothy Patrick Callahan at a glance

Timothy Patrick Callahan is a Partner, Corporate Department based in Chicago, Illinois, practicing at Paul Hastings LLP. They have 38+ years of legal experience, licensed to practice since 1988. Their practice focuses on contracts, business, environmental, and energy. Admitted to practice in Illinois (1988). Educated at University of Michigan Law School (J.D., 1988) and University of Michigan (B.A., 1985). Recognitions include AV Preeminent. Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Über uns

  • Timothy Patrick Callahan is a lawyer practicing construction / development, contracts / agreements, sustainability and global climate change and 3 other areas of law
  • Timothy received a B.A. degree from University of Michigan in 1985, and has been licensed for 38 years
  • Timothy practices at Paul Hastings LLP in Chicago, IL

Practice Areas Explained

Timothy Patrick Callahan's Areas of Practice

Each practice area below reflects the types of cases Timothy Patrick Callahan handles, with a brief overview of what that area of law covers.

Contracts

Timothy Patrick Callahan is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in Illinois →

Business & Corporate Law

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

Timothy Patrick Callahan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Illinois →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

Timothy Patrick Callahan is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in Illinois →

Energy & Utilities Law

Energy attorneys for oil & gas, renewables, utility regulation, and energy sector transactions.

Timothy Patrick Callahan is one of 36,230 energy attorneys indexed nationally. Browse energy attorneys in Illinois →

Jurisdictional Context

Why local counsel matters in Illinois

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 andnue, 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.

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

Frequently Asked

Common questions about Timothy Patrick Callahan

Where is Timothy Patrick Callahan's law office located?
Timothy Patrick Callahan's law practice is located in Chicago, Illinois. The firm is Paul Hastings LLP. You can contact the office directly through this profile page.
What practice areas does Timothy Patrick Callahan handle?
Timothy Patrick Callahan focuses on contracts, business, environmental, energy. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Timothy Patrick Callahan practiced law?
Timothy Patrick Callahan has 38+ years of legal experience and has been licensed since 1988.
Where did Timothy Patrick Callahan go to law school?
Timothy Patrick Callahan earned their education at (J.D., 1988); (B.A., 1985).
How can I contact Timothy Patrick Callahan for a consultation?
You can contact Timothy Patrick 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 Timothy Patrick Callahan received?
Timothy Patrick Callahan's notable recognition includes: AV Preeminent.

Education

J.D.
University of Michigan Law School
- 1988
B.A.
University of Michigan
- 1985

Awards

AV Preeminent

Bar Admissions

Illinois
Admitted: 1988

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