Atty. Bennett S. Keller

Atty. Bennett S. Keller

Mr. Keller is a member in our wealth strategies and corporate practice areas.

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Profile Summary

About Bennett S. Keller at a glance

Bennett S. Keller is a trusts, family law, business, and tax attorney based in St. Louis, Missouri, practicing at Sandberg Phoenix & von Gontard PC. Admitted to practice in Illinois, United States, Missouri, United States, and United States, Tax Court. Educated at University of Missouri School of Law (Columbia) (J.D., 1984). Recognitions include Best Lawyers in America — Closely Held Companies and Family Businesses Law (2026), Best Lawyers in America — Corporate Law (2026), and Best Lawyers in America — Tax Law (2026). Serands clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

Mr. Keller is a member in our wealth strategies and corporate practice areas. He concentrates his practice in estate planning, probate and general business, corporate law and succession planning. Mr. Keller is an adjunct professor at the Washington University School of Law in the Master's of Taxation Program where he teaches a class in business succession planning.

Mr. Keller is a frequent lecturer and speaker on estate planning, business succession planning and tax issues. He has authored articles for such publications as the Journal of Taxation, Estate Planning, and the St. Louis Business Journal.

In The News
  • 06/26/2009

Client relationship issues for professional services firms

  • 06/26/2009

Mentoring talent to find the next generation of leaders

  • 06/26/2009

Succession planning helps professional services firms survive

  • 05/27/2008
St. Louis TV Network Features Ben Keller on Estate Planning

Press Releases
  • 01/29/2010
Ben Keller, John King, Scott Malin Make St. Louis Magazine's "Best Lawyers"
  • 08/03/2009
56 Lathrop & Gage Attorneys Named Best Lawyers in America
  • 10/23/2008
52 Lathrop & Gage Attorneys Named Super Lawyers
  • 02/20/2008
St. Louis Magazine Includes Three Lathrop Gage Attorneys as "Best Lawyers"

Practice Areas Explained

Bennett S. Keller's Areas of Practice

Each practice area below reflects the types of cases Bennett S. Keller handles, with a brief overview of what that area of law covers.

Trusts

Bennett S. Keller is one of 104,171 trusts attorneys indexed nationally. Browse trusts attorneys in Missouri →

Family Law

Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.

Bennett S. Keller is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in Missouri →

Business & Corporate Law

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

Bennett S. Keller is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Missouri →

Tax Law

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

Bennett S. Keller is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Missouri →

Jurisdictional Context

Why local counsel matters in Missouri

Practicing law in Missouri. Legal matters in Missouri are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in St. Louis are typically filed in the local municipal court or the appropriate Missouri state district court, depending on subject matter and amount in controversy. An attorney licensed in Missouri 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 Missouri courts without local counsel or pro hac vice admission.

Looking for additional Missouri attorneys? Browse all attorneys in St. Louis or all attorneys in Missouri.

Frequently Asked

Common questions about Bennett S. Keller

Where is Bennett S. Keller's law office located?
Bennett S. Keller's law practice is located in St. Louis, Missouri. The firm is Sandberg Phoenix & von Gontard PC. You can contact the office directly through this profile page.
What practice areas does Bennett S. Keller handle?
Bennett S. Keller focuses on trusts, family law, business, tax. Each practice area listed reflects experience handling cases of that type in Missouri.
Where did Bennett S. Keller go to law school?
Bennett S. Keller earned their education at (J.D., 1984).
How can I contact Bennett S. Keller for a consultation?
You can contact Bennett S. Keller 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 Bennett S. Keller received?
Bennett S. Keller's notable recognition includes: Best Lawyers in America — Closely Held Companies and Family Businesses Law; Best Lawyers in America — Corporate Law; Best Lawyers in America — Tax Law; Best Lawyers in America — Trusts and Estates; Best Lawyers in America — Special Focus:.

Education

J.D.
University of Missouri School of Law (Columbia)
- 1984

Awards

Best Lawyers in America — Closely Held Companies and Family Businesses Law
- 2026
Best Lawyers in America — Corporate Law
- 2026
Best Lawyers in America — Tax Law
- 2026
Best Lawyers in America — Trusts and Estates
- 2026
Best Lawyers in America — Special Focus:
- 2026
Best Lawyers in America — Awards:
- 2026
Best Lawyers in America — Selected among The Best Lawyers in America, 2008-2016
- 2026
Best Lawyers in America — Selected for Missouri/Kansas Super Lawyers, 2005-2006, 2008-2015
- 2026
Best Lawyers in America — Martindale-Hubbell “AV” Rating
- 2026
Best Lawyers in America — Beta Alpha Psi
- 2026
Best Lawyers in America — Delta Theta Phi
- 2026
Best Lawyers in America — Note and Comment Editor, Missouri Law Review
- 2026
Best Lawyers in America — Outstanding Young West Countian
- 2026

Bar Admissions

Illinois, United States
Missouri, United States
United States, Tax Court

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