Atty. Jeffrey C. Keiffer

Atty. Jeffrey C. Keiffer

Jeffrey C. Keiffer is a lawyer practicing civil practice, criminal taxation, tax controversies and 4 other areas of law.

Lone Tree Lone Tree 34 yrs experience 34 year
Call (303) 531-8927 Book Appointment

Profile Summary

About Jeffrey C. Keiffer at a glance

Jeffrey C. Keiffer is a Member based in Lone Tree, Colorado, practicing at Keiffer, LLC. They have 34+ years of legal experience, licensed to practice since 1992. Their practice focuses on irs, criminal defense, business, tax, and litigation. Admitted to practice in Ohio (1992), U.S. District Court, District of Colorado (1997), Colorado (1997), and U.S. Tax Court (1998). Educated at University of Toledo (J.D., 1992) and University of Cincinnati (B.B.A., 1988). Active member of Douglas/Elbert Bar Association. Serands clients in Lone Tree, CO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Jeffrey C. Keiffer is a lawyer practicing civil practice, criminal taxation, tax controversies and 4 other areas of law
  • Jeffrey received a B.B.A. degree from University of Cincinnati in 1988, and has been licensed for 34 years
  • Jeffrey practices at Keiffer, LLC in Lone Tree, CO

Practice Areas Explained

Jeffrey C. Keiffer's Areas of Practice

Each practice area below reflects the types of cases Jeffrey C. Keiffer handles, with a brief overview of what that area of law covers.

IRS Disputes & Audits

Jeffrey C. Keiffer is one of 2,917 irs attorneys indexed nationally. Browse irs attorneys in Colorado →

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Jeffrey C. Keiffer is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Colorado →

Business & Corporate Law

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

Jeffrey C. Keiffer is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Colorado →

Tax Law

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

Jeffrey C. Keiffer is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Colorado →

Civil Litigation

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

Jeffrey C. Keiffer is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Colorado →

Jurisdictional Context

Why local counsel matters in Colorado

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

Looking for additional Colorado attorneys? Browse all attorneys in Lone Tree or all attorneys in Colorado.

Frequently Asked

Common questions about Jeffrey C. Keiffer

Where is Jeffrey C. Keiffer's law office located?
Jeffrey C. Keiffer's law practice is located in Lone Tree, Colorado. The firm is Keiffer, LLC. You can contact the office directly through this profile page.
What practice areas does Jeffrey C. Keiffer handle?
Jeffrey C. Keiffer focuses on irs, criminal defense, business, tax, litigation. Each practice area listed reflects experience handling cases of that type in Colorado.
How long has Jeffrey C. Keiffer practiced law?
Jeffrey C. Keiffer has 34+ years of legal experience and has been licensed since 1992.
Where did Jeffrey C. Keiffer go to law school?
Jeffrey C. Keiffer earned their education at (J.D., 1992); (B.B.A., 1988).
How can I contact Jeffrey C. Keiffer for a consultation?
You can contact Jeffrey C. Keiffer 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.
University of Toledo
- 1992
B.B.A.
University of Cincinnati
- 1988

Bar Admissions

Ohio
Admitted: 1992
U.S. District Court, District of Colorado
Admitted: 1997
Colorado
Admitted: 1997
U.S. Tax Court
Admitted: 1998

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