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Frank H. Hackmann, Energy Attorney in Chicago, Illinois

Over 54 years of legal practice · focused on Energy, Environmental, and Government · 5.0/5 rating from 1 verified client review

PartneratDentons US LLP

Chicago, IL

Practicing energy in Chicago since 1972.

54+
Years practicing
5.0 ★
1 client review
2
Bar admissions

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Quick answer

Frank H. Hackmann is a partner based in Chicago, IL. The practice focuses on Energy, Environmental, and Government. Frank has over 54 years of legal experience. Currently practicing at Dentons US LLP. Rated 5.0 out of 5 from 1 client review.

Based in
Chicago, IL
Experience
over 54 years
Known for
Energy · Environmental · Government
  • Handles Energy, Environmental, and Government matters from Chicago, IL.
  • Over 54 years of practice as a licensed attorney.
  • Recognized with AV Preeminent.

About Frank H. Hackmann: Frank H. Hackmann is a partner based in Chicago, IL. The practice focuses on Energy, Environmental, and Government. Frank has over 54 years of legal experience. Currently practicing at Dentons US LLP. Rated 5.0 out of 5 from 1 client review.

Areas of practice

Legal matters Frank takes on

Frank concentrates on energy, environmental, and government. Each area below outlines the kind of case Frank handles, typical outcomes to expect, and how the intake process starts.

Energy cases in Chicago, Illinois

Frank takes energy matters in Chicago, Illinois. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Frank agrees to represent you.

Environmental cases in Chicago, Illinois

Frank takes environmental matters in Chicago, Illinois. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Frank agrees to represent you.

Government cases in Chicago, Illinois

Frank takes government matters in Chicago, Illinois. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Frank agrees to represent you.

Biography

Meet Frank H. Hackmann — energy lawyer in Chicago

Frank H. Hackmann is a partner based in Chicago, IL. The practice focuses on Energy, Environmental, and Government. Frank has over 54 years of legal experience. Currently practicing at Dentons US LLP. Rated 5.0 out of 5 from 1 client review.

Frank H. Hackmann is a lawyer practicing environmental law, energy law, administrative law. Frank received a degree from University of Illinois in 1967, and has been licensed for 54 years. Frank practices at Dentons US LLP in Chicago, IL and 1 other location.

Frank's approach to energy cases

Frank H. Hackmann is a lawyer practicing environmental law, energy law, administrative law. Frank received a degree from University of Illinois in 1967, and has been licensed for 54 years. Frank practices at Dentons US LLP in Chicago, IL and 1 other location.

The kind of cases Frank takes

Frank reviews new inquiries case-by-case for energy, environmental, and government matters in Chicago and the surrounding Illinois area.

Credentials

Education, bar admissions, and languages

  • St. Louis University

    J.D. · 1972

  • University of Illinois

    B.S. Ch. · 1967

Jurisdictions

Frank's state bar admissions

  • Illinois

    1973 · ACTIVE

  • Missouri

    1972 · ACTIVE

Frank studied at J.D. in St. Louis University and B.S. Ch. in University of Illinois.

Law school and academic background

Frank completed J.D. in St. Louis University and B.S. Ch. in University of Illinois. Formal legal training is one signal of substantive knowledge — the day-to-day practice Frank runs in Illinois is where that training gets applied to real client questions.

Recognition

Recognition and thought leadership

Frank has received 1 formal recognition from bar associations, industry bodies, and peer-review services.

  • AV Preeminent

Legal awards and honors

AV Preeminent.

Locations

Frank H. Hackmann's office in Chicago

Frank's primary office is at Sears Tower, Suite 7800, 233 S. Wacker Drive, Chicago, IL, 60606-6459. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Dentons US LLP

Sears Tower, Suite 7800, 233 S. Wacker Drive

Chicago, IL 60606-6459

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Client feedback

Client reviews of Frank H. Hackmann — 5.0/5 rating from 1 verified client review

Every review below is from a verified client of Frank. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing energy attorneys in Chicago.

5.0

1 client review

Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Frank H. Hackmann claims this profile.

Read all reviews

Hiring guide

How to hire Frank H. Hackmann — what to expect in your first consultation

Working with a new energy attorney should feel structured. Here's how the first two conversations with Frank usually go, from the moment you request a consult to the day representation begins.

Consultation formats and pricing

Frank charges for the initial consult. That fee is credited toward representation if you retain Frank's office.

What to bring to your first meeting

Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Frank will tell you what matters and what doesn't.

Questions to ask a energy attorney in Chicago, Illinois

A short list to run through before you commit: How many energy matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?

Fees & payment

Fees, payment methods, and consultation options for Frank

Frank discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in energy practice — ask which fits.

Hourly rates, contingency fees, and flat-fee options

Every energy matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Frank confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

Frank's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many energy practices work with clients on structured schedules.

Frequently asked

Frequently asked questions about Frank H. Hackmann

  • How much does it cost to hire Frank for a energy case?

    Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Frank walks through the likely range during the consult so there are no surprises.

  • Does Frank offer a free consultation?

    Frank charges for the initial consult; that fee is credited toward representation if you retain Frank's office. Some energy attorneys offer free consults — check Frank's current terms during booking.

  • How long do energy cases in Illinois typically take?

    Simple energy matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Frank gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can Frank take my case if I'm outside Chicago?

    Frank is licensed in Illinois. Matters governed by Illinois law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Frank will tell you if the case is a fit or refer you to someone closer to your court.

  • What should I bring to my first meeting with Frank?

    Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Frank will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is Frank accepting new energy clients right now?

    Frank's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.

Areas served

Energy attorneys serving Chicago, Springfield and Northbrook in Illinois

Frank handles energy matters throughout Illinois. Each city below is a direct link into the search page for verified energy attorneys in that community.

More counsel

If Frank's intake is full or the fit isn't right, these energy attorneys in Chicago handle similar matters. Every profile below is verified and open to consultations.