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Guillermo Florentino Martinez, Business Attorney in Chicago, Illinois

Over 43 years of legal practice · focused on Business, Citizenship, and Criminal Defense · 2.9/5 rating from 1 verified client review

Practicing business in Chicago since 1983.

43+
Years practicing
2.9 ★
1 client review
1
Bar admission

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Quick answer

Guillermo Florentino Martinez is a member based in Chicago, IL. The practice focuses on Business, Citizenship, and Criminal Defense. Guillermo has over 43 years of legal experience. Currently practicing at Guillermo F. Martinez & Associates A Professional Corporation. Rated 2.9 out of 5 from 1 client review.

Based in
Chicago, IL
Experience
over 43 years
Known for
Business · Citizenship · Criminal Defense
  • Handles Business, Citizenship, and Criminal Defense matters from Chicago, IL.
  • Over 43 years of practice as a licensed attorney.
  • Recognized with CV Notable.

About Guillermo Florentino Martinez: Guillermo Florentino Martinez is a member based in Chicago, IL. The practice focuses on Business, Citizenship, and Criminal Defense. Guillermo has over 43 years of legal experience. Currently practicing at Guillermo F. Martinez & Associates A Professional Corporation. Rated 2.9 out of 5 from 1 client review.

Areas of practice

Legal matters Guillermo takes on

Guillermo concentrates on business, citizenship, criminal defense, divorce, and immigration. Each area below outlines the kind of case Guillermo handles, typical outcomes to expect, and how the intake process starts.

Business cases in Chicago, Illinois

Guillermo takes business 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 Guillermo agrees to represent you.

Citizenship cases in Chicago, Illinois

Guillermo takes citizenship 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 Guillermo agrees to represent you.

Criminal Defense cases in Chicago, Illinois

Guillermo takes criminal defense 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 Guillermo agrees to represent you.

Divorce cases in Chicago, Illinois

Guillermo takes divorce 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 Guillermo agrees to represent you.

Immigration cases in Chicago, Illinois

Guillermo takes immigration 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 Guillermo agrees to represent you.

Biography

Meet Guillermo Florentino Martinez — business lawyer in Chicago

Guillermo Florentino Martinez is a member based in Chicago, IL. The practice focuses on Business, Citizenship, and Criminal Defense. Guillermo has over 43 years of legal experience. Currently practicing at Guillermo F. Martinez & Associates A Professional Corporation. Rated 2.9 out of 5 from 1 client review.

Guillermo Florentino Martinez is a lawyer practicing criminal law, immigration and naturalization, real estate and 2 other areas of law. Guillermo received a B.A. degree from Carroll College in 1966, and has been licensed for 43 years. Guillermo practices at Guillermo F. Martinez & Associates A Professional Corporation in Chicago, IL.

Guillermo's approach to business cases

Guillermo Florentino Martinez is a lawyer practicing criminal law, immigration and naturalization, real estate and 2 other areas of law. Guillermo received a B.A. degree from Carroll College in 1966, and has been licensed for 43 years. Guillermo practices at Guillermo F. Martinez & Associates A Professional Corporation in Chicago, IL.

The kind of cases Guillermo takes

Guillermo reviews new inquiries case-by-case for business, citizenship, and criminal defense matters in Chicago and the surrounding Illinois area.

Credentials

Education, bar admissions, and languages

  • John Marshall Law School

    J.D. · 1980

  • Carroll College

    B.A. DePaul · 1966

Jurisdictions

Guillermo's state bar admissions

  • Illinois

    1983 · ACTIVE

Guillermo studied at J.D. in John Marshall Law School and B.A. DePaul in Carroll College.

Law school and academic background

Guillermo completed J.D. in John Marshall Law School and B.A. DePaul in Carroll College. Formal legal training is one signal of substantive knowledge — the day-to-day practice Guillermo runs in Illinois is where that training gets applied to real client questions.

Recognition

Recognition and thought leadership

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

  • CV Notable

Legal awards and honors

CV Notable.

Affiliations

Guillermo's professional memberships and bar associations

  • Chicago, Illinois State and American Bar Associations

    membership

Locations

Guillermo Florentino Martinez's office in Chicago

Guillermo's primary office is at 2457 N. Milwaukee Ave., Chicago, IL, 60647-2662. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Guillermo F. Martinez & Associates A Professional Corporation

2457 N. Milwaukee Ave.

Chicago, IL 60647-2662

Open in Google Maps

Client feedback

Client reviews of Guillermo Florentino Martinez — 2.9/5 rating from 1 verified client review

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

2.9

1 client review

Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Guillermo Florentino Martinez claims this profile.

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Hiring guide

How to hire Guillermo Florentino Martinez — what to expect in your first consultation

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

Consultation formats and pricing

Guillermo charges for the initial consult. That fee is credited toward representation if you retain Guillermo'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; Guillermo will tell you what matters and what doesn't.

Questions to ask a business attorney in Chicago, Illinois

A short list to run through before you commit: How many business 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 Guillermo

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

Hourly rates, contingency fees, and flat-fee options

Every business 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. Guillermo confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

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

Frequently asked

Frequently asked questions about Guillermo Florentino Martinez

  • How much does it cost to hire Guillermo for a business case?

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

  • Does Guillermo offer a free consultation?

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

  • How long do business cases in Illinois typically take?

    Simple business 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. Guillermo gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

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

    Guillermo 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 — Guillermo 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 Guillermo?

    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. Guillermo will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is Guillermo accepting new business clients right now?

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

Areas served

Business attorneys serving Chicago, Springfield and Northbrook in Illinois

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

More counsel

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