Atty. Heather Lee Sullivan

Atty. Heather Lee Sullivan

Heather Lee Sullivan is a lawyer practicing debt collection, government, appeals and 2 other areas of law. Heather received a A.B. degree from Harvard University in 1995, and has been licensed for 25 years.

Chicago Chicago 25 yrs experience 25 year
Call (224) 836-1490 Book Appointment

Profile Summary

About Heather Lee Sullivan at a glance

Heather Lee Sullivan is an Associate based in Chicago, Illinois, practicing at Tressler LLP. They have 25+ years of legal experience, licensed to practice since 2001. Their practice focuses on tax, creditor rights, litigation, government, and appellate. Admitted to practice in Illinois U.S. District Court Northern District of Illinois (2001) and California (2002). Educated at Loyola University of Chicago of Law J.D. University of Chicago Law School (J.D., 2000) and Harvard University (A.B. University, 1995). Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Heather Lee Sullivan is a lawyer practicing debt collection, government, appeals and 2 other areas of law
  • Heather received a A.B. degree from Harvard University in 1995, and has been licensed for 25 years
  • Heather practices at Tressler LLP in Chicago, IL

Practice Areas Explained

Heather Lee Sullivan's Areas of Practice

Each practice area below reflects the types of cases Heather Lee Sullivan handles, with a brief overview of what that area of law covers.

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

Heather Lee Sullivan is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Illinois →

Creditor Rights & Collections

Heather Lee Sullivan is one of 42,948 creditor rights attorneys indexed nationally. Browse creditor rights attorneys in Illinois →

Civil Litigation

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

Heather Lee Sullivan is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →

Government & Administrative Law

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

Heather Lee Sullivan is one of 132,225 government attorneys indexed nationally. Browse government attorneys in Illinois →

Appellate Practice

Appellate attorneys for civil and criminal appeals at state and federal court.

Heather Lee Sullivan is one of 86,319 appellate attorneys indexed nationally. Browse appellate 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 Heather Lee Sullivan

Where is Heather Lee Sullivan's law office located?
Heather Lee Sullivan's law practice is located in Chicago, Illinois. The firm is Tressler LLP. You can contact the office directly through this profile page.
What practice areas does Heather Lee Sullivan handle?
Heather Lee Sullivan focuses on tax, creditor rights, litigation, government, appellate. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Heather Lee Sullivan practiced law?
Heather Lee Sullivan has 25+ years of legal experience and has been licensed since 2001.
Where did Heather Lee Sullivan go to law school?
Heather Lee Sullivan earned their education at (J.D., 2000); (A.B. University, 1995).
How can I contact Heather Lee Sullivan for a consultation?
You can contact Heather Lee Sullivan 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.

Education

J.D.
Loyola University of Chicago of Law J.D. University of Chicago Law School
- 2000
A.B. University
Harvard University
- 1995

Bar Admissions

Illinois U.S. District Court Northern District of Illinois
Admitted: 2001
California
Admitted: 2002

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