Atty. John Peter Antonopoulos

Atty. John Peter Antonopoulos

John Peter Antonopoulos is a lawyer practicing corporate & incorporation, probate, real estate and 1 other area of law. John received a B.B.A. degree from Loyola University - Chicago, IL, and has been licensed for 55 years.

Lemont Lemont 55 yrs experience 55 year
Call (224) 801-4736 Book Appointment

Corporate & Incorporation & More Attorney · Serving Lemont, IL · 55+ Years Experience

Profile Summary

About John Peter Antonopoulos at a Glance

John Peter Antonopoulos is a formation, probate, real estate, and litigation attorney based in Lemont, Illinois. They have 55+ years of legal experience, licensed to practice since 1971. Admitted to practice in Illinois (1971). Educated at DePaul University J.D. (—) and Loyola University - Chicago, IL B.B.A. (—). Serves clients in Lemont, IL and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About John Peter Antonopoulos

  • John Peter Antonopoulos is a lawyer practicing corporate & incorporation, probate, real estate and 1 other area of law
  • John received a B.B.A. degree from Loyola University - Chicago, IL, and has been licensed for 55 years
  • John practices in Lemont, IL

Practice Areas Explained

John Peter Antonopoulos's Areas of Legal Practice

Each practice area below reflects the types of cases John Peter Antonopoulos handles, with a practical overview of what that area of law involves and how it may apply to your situation in Lemont.

Business Formation in Lemont

John Peter Antonopoulos is one of 35,326 formation attorneys indexed nationally. Browse formation attorneys in Illinois →

Probate in Lemont

John Peter Antonopoulos is one of 127,041 probate attorneys indexed nationally. Browse probate attorneys in Illinois →

Real Estate Law in Lemont

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

John Peter Antonopoulos is one of 313,729 real estate attorneys indexed nationally. Browse real estate attorneys in Illinois →

Civil Litigation in Lemont

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

John Peter Antonopoulos is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →

Jurisdictional Context

Why Local Counsel Matters in Lemont

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 Lemont 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.

Lemont Courts and Legal Process

Choosing a Lemont-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 Lemont or all attorneys in Illinois.

Frequently Asked

Common Questions About John Peter Antonopoulos

Where is John Peter Antonopoulos's law office located?
John Peter Antonopoulos's law practice is located in Lemont, Illinois. You can contact the office directly through this profile page.
What practice areas does John Peter Antonopoulos handle?
John Peter Antonopoulos focuses on formation, probate, real estate, litigation. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has John Peter Antonopoulos practiced law?
John Peter Antonopoulos has 55+ years of legal experience and has been licensed since 1971.
Where did John Peter Antonopoulos go to law school?
John Peter Antonopoulos earned their education at (—); (—).
How can I contact John Peter Antonopoulos for a consultation?
You can contact John Peter Antonopoulos 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.

Professional Profile

Why Clients in Lemont Choose John Peter Antonopoulos

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 John Peter Antonopoulos's practice in the field of formation, probate, real estate, and litigation.

Decade-Tested Legal Experience

John Peter Antonopoulos brings 55+ 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 formation, probate, and real estate, John Peter Antonopoulos can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Lemont

A Lemont-based practice means John Peter Antonopoulos attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues John Peter Antonopoulos Handles in Lemont

Below is a representative sample of the types of matters John Peter Antonopoulos has experience with under Illinois law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

Residential property transactions
Real Estate
Commercial lease disputes
Real Estate
Title and deed issues
Real Estate
Landlord-tenant conflicts
Real Estate

This list is illustrative, not exhaustive. Contact John Peter Antonopoulos directly to discuss the specifics of your situation.

Search Reference

How People Find John Peter Antonopoulos Online

Prospective clients searching for legal help in Lemont 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 John Peter Antonopoulos.

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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 John Peter Antonopoulos directly.

John Peter Antonopoulos's Practice Areas & Specializations

Education & Law School Background

—
DePaul University J.D.
- In Progress
—
Loyola University - Chicago, IL B.B.A.
- In Progress

Bar Admissions & Licensed Jurisdictions

Illinois
Admitted: 1971

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