Atty. Leonard Mason

Atty. Leonard Mason

Leonard Mason is a lawyer practicing taxation law, real estate law, corporate law and 1 other area of law. Leonard received a B.S. degree from University of Illinois, and has been licensed for 58 years.

Northbrook Northbrook 58 yrs experience 58 year
Call (312) 535-4941 Book Appointment

Profile Summary

About Leonard Mason at a glance

Leonard Mason is a estate planning, business, real estate, and tax attorney based in Northbrook, Illinois. They have 58+ years of legal experience, licensed to practice since 1968. Admitted to practice in Illinois (1968). Educated at John Marshall Law School J.D. (—) and University of Illinois B.S. (—). Serands clients in Northbrook, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Leonard Mason is a lawyer practicing taxation law, real estate law, corporate law and 1 other area of law
  • Leonard received a B.S. degree from University of Illinois, and has been licensed for 58 years
  • Leonard practices in Northbrook, IL

Practice Areas Explained

Leonard Mason's Areas of Practice

Each practice area below reflects the types of cases Leonard Mason 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.

Leonard Mason is one of 226,537 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.

Leonard Mason is one of 501,317 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.

Leonard Mason is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Illinois →

Tax Law

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

Leonard Mason is one of 85,302 tax attorneys indexed nationally. Browse tax 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 Northbrook 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 Northbrook or all attorneys in Illinois.

Frequently Asked

Common questions about Leonard Mason

Where is Leonard Mason's law office located?
Leonard Mason's law practice is located in Northbrook, Illinois. You can contact the office directly through this profile page.
What practice areas does Leonard Mason handle?
Leonard Mason focuses on estate planning, business, real estate, tax. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Leonard Mason practiced law?
Leonard Mason has 58+ years of legal experience and has been licensed since 1968.
Where did Leonard Mason go to law school?
Leonard Mason earned their education at (—); (—).
How can I contact Leonard Mason for a consultation?
You can contact Leonard Mason 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

John Marshall Law School J.D.
- In Progress
University of Illinois B.S.
- In Progress

Bar Admissions

Illinois
Admitted: 1968

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