Atty. Patrick Michael McMahon

Atty. Patrick Michael McMahon

Patrick Michael McMahon is a lawyer practicing estate planning, corporate, real estate and 2 other areas of law. Patrick received a B.S. degree from Indiana University in 1988, and has been licensed for 33 years.

Arlington Heights Arlington Heights 33 Years Experience 33 year
Call (847) 984-3519

Profile Summary

About Patrick Michael McMahon at a glance

Patrick Michael McMahon is a Member based in Arlington Heights, Illinois, practicing at Drost Kivlahan McMahon & O'Connor LLC. They have 33+ years of legal experience, licensed to practice since 1993. Their practice focuses on estate planning, business, real estate, and litigation. Admitted to practice in Illinois (1993) and U.S. District Court, Northern District of Illinois (1993). Educated at John Marshall Law School (J.D., 1993) and Indiana University (B.S., 1988). Active member of Chicago Bar Association. Serves clients in Arlington Heights, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Patrick Michael McMahon is a lawyer practicing estate planning, corporate, real estate and 2 other areas of law
  • Patrick received a B.S. degree from Indiana University in 1988, and has been licensed for 33 years
  • Patrick practices at Drost Kivlahan McMahon & O'Connor LLC in Arlington Heights, IL

Practice Areas Explained

Patrick Michael McMahon's Areas of Practice

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

Estate Planning & Probate

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

Patrick Michael McMahon is one of 203,974 estate planning attorneys indexed nationally. Browse estate planning attorneys in Illinois →

Business & Corporate Law

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

Patrick Michael McMahon is one of 452,854 business attorneys indexed nationally. Browse business attorneys in Illinois →

Real Estate Law

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

Patrick Michael McMahon is one of 286,061 real estate attorneys indexed nationally. Browse real estate attorneys in Illinois →

Civil Litigation

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

Patrick Michael McMahon is one of 409,070 litigation attorneys indexed nationally. Browse litigation 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 Arlington Heights 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.

Looking for additional Illinois attorneys? Browse all attorneys in Arlington Heights or all attorneys in Illinois.

Frequently Asked

Common questions about Patrick Michael McMahon

Where is Patrick Michael McMahon's law office located?
Patrick Michael McMahon's law practice is located in Arlington Heights, Illinois. The firm is Drost Kivlahan McMahon & O'Connor LLC. You can contact the office directly through this profile page.
What practice areas does Patrick Michael McMahon handle?
Patrick Michael McMahon focuses on estate planning, business, real estate, litigation. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Patrick Michael McMahon practiced law?
Patrick Michael McMahon has 33+ years of legal experience and has been licensed since 1993.
Where did Patrick Michael McMahon go to law school?
Patrick Michael McMahon earned their education at (J.D., 1993); (B.S., 1988).
How can I contact Patrick Michael McMahon for a consultation?
You can contact Patrick Michael McMahon 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.
John Marshall Law School
- 1993
B.S.
Indiana University
- 1988

Bar Admissions

Illinois
Admitted: 1993
U.S. District Court, Northern District of Illinois
Admitted: 1993

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