Atty. John Ashby Slover

Atty. John Ashby Slover

John Ashby Slover is a lawyer practicing advanced estate planning, taxation, business entities and 3 other areas of law. John received a A.A. degree from Black Hawk College in 1964, and has been licensed for 57 years.

Moline Moline 57 yrs experience 57 year
Call (309) 623-5564 Book Appointment

Profile Summary

About John Ashby Slover at a glance

John Ashby Slover is a Member based in Moline, Illinois, practicing at Califf & Harper, P.C.. They have 57+ years of legal experience, licensed to practice since 1969. Their practice focuses on formation, estate planning, business, and tax. Admitted to practice in Illinois (1969) and Iowa (2003). Educated at University of Illinois (J.D., 1969) and Black Hawk College (A.A. University, 1964). Recognitions include AV Preeminent. Active member of Quad City Estate Planning Council (President, 2002-2003) Rock Island County, Illinois State and Iowa State Bar Associations American Bar Association. Serands clients in Moline, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Ashby Slover is a lawyer practicing advanced estate planning, taxation, business entities and 3 other areas of law
  • John received a A.A. degree from Black Hawk College in 1964, and has been licensed for 57 years
  • John practices at Califf & Harper, P.C. in Moline, IL

Practice Areas Explained

John Ashby Slover's Areas of Practice

Each practice area below reflects the types of cases John Ashby Slover handles, with a brief overview of what that area of law covers.

Business Formation

John Ashby Slover is one of 35,584 formation attorneys indexed nationally. Browse formation attorneys in Illinois →

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.

John Ashby Slover 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.

John Ashby Slover is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Illinois →

Tax Law

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

John Ashby Slover 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 Moline 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 Moline or all attorneys in Illinois.

Frequently Asked

Common questions about John Ashby Slover

Where is John Ashby Slover's law office located?
John Ashby Slover's law practice is located in Moline, Illinois. The firm is Califf & Harper, P.C.. You can contact the office directly through this profile page.
What practice areas does John Ashby Slover handle?
John Ashby Slover focuses on formation, estate planning, business, tax. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has John Ashby Slover practiced law?
John Ashby Slover has 57+ years of legal experience and has been licensed since 1969.
Where did John Ashby Slover go to law school?
John Ashby Slover earned their education at (J.D., 1969); (A.A. University, 1964).
How can I contact John Ashby Slover for a consultation?
You can contact John Ashby Slover 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.
What awards or recognition has John Ashby Slover received?
John Ashby Slover's notable recognition includes: AV Preeminent.

Education

J.D.
University of Illinois
- 1969
A.A. University
Black Hawk College
- 1964

Awards

AV Preeminent

Bar Admissions

Illinois
Admitted: 1969
Iowa
Admitted: 2003

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