Atty. William Thomas Peffer

Atty. William Thomas Peffer

William Thomas Peffer is a lawyer practicing corporate law, mergers and acquisitions, securities law and 5 other areas of law. William received a B.A. degree from University of Colorado in 2006, and has been licensed for 17 years.

Denver Denver 17 J. Erfahrung 17 year
Call (983) 203-7399 Book Appointment

Profile Summary

About William Thomas Peffer at a glance

William Thomas Peffer is an Associate based in Denver, Colorado, practicing at Sherman & Howard L.L.C.. They have 17+ years of legal experience, licensed to practice since 2009. Their practice focuses on business, real estate, ip, tax, and m&a. Admitted to practice in Minnesota (2009) and Colorado (2013). Educated at University of Iowa College of Law (J.D., 2009) and University of Colorado (B.A. Political, 2006). Serands clients in Denver, CO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Über uns

  • William Thomas Peffer is a lawyer practicing corporate law, mergers and acquisitions, securities law and 5 other areas of law
  • William received a B.A. degree from University of Colorado in 2006, and has been licensed for 17 years
  • William practices at Sherman & Howard L.L.C. in Denver, CO

Practice Areas Explained

William Thomas Peffer's Areas of Practice

Each practice area below reflects the types of cases William Thomas Peffer handles, with a brief overview of what that area of law covers.

Business & Corporate Law

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

William Thomas Peffer is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Colorado →

Real Estate Law

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

William Thomas Peffer is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Colorado →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

William Thomas Peffer is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Colorado →

Tax Law

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

William Thomas Peffer is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Colorado →

Mergers & Acquisitions

William Thomas Peffer is one of 49,731 m&a attorneys indexed nationally. Browse m&a 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 Denver 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 Denver or all attorneys in Colorado.

Frequently Asked

Common questions about William Thomas Peffer

Where is William Thomas Peffer's law office located?
William Thomas Peffer's law practice is located in Denver, Colorado. The firm is Sherman & Howard L.L.C.. You can contact the office directly through this profile page.
What practice areas does William Thomas Peffer handle?
William Thomas Peffer focuses on business, real estate, ip, tax, m&a. Each practice area listed reflects experience handling cases of that type in Colorado.
How long has William Thomas Peffer practiced law?
William Thomas Peffer has 17+ years of legal experience and has been licensed since 2009.
Where did William Thomas Peffer go to law school?
William Thomas Peffer earned their education at (J.D., 2009); (B.A. Political, 2006).
How can I contact William Thomas Peffer for a consultation?
You can contact William Thomas Peffer 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 Iowa College of Law
- 2009
B.A. Political
University of Colorado
- 2006

Bar Admissions

Minnesota
Admitted: 2009
Colorado
Admitted: 2013

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