Atty. William F Colgin

Atty. William F Colgin

William F Colgin is a lawyer practicing tax, tax consulting to u.s. multinationals, tax controversy & litigation and 7 other areas of law. William received a B.A. degree from University of Wyoming in 1987, and has been licensed for 30 years.

San Francisco San Francisco 30 yrs experience 30 year
Call (628) 266-5125 Book Appointment

Profile Summary

About William F Colgin at a glance

William F Colgin is a Partner based in San Francisco, California, practicing at Morgan, Lewis & Bockius LLP. They have 30+ years of legal experience, licensed to practice since 1996. Their practice focuses on irs, business, tax, international tax, and white collar. Admitted to practice in U.S. Tax Court U.S. District Court, Northern District of California U.S. Court of Federal Claims U.S (1996), California (1997), Wyoming (2019), and Colorado (2019). Educated at University of Denver College of Law (J.D., 1992) and University of Wyoming (B.A. University, 1987). Recognitions include Peer Reviewed. Serands clients in San Francisco, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William F Colgin is a lawyer practicing tax, tax consulting to u.s. multinationals, tax controversy & litigation and 7 other areas of law
  • William received a B.A. degree from University of Wyoming in 1987, and has been licensed for 30 years
  • William practices at Morgan, Lewis & Bockius LLP in San Francisco, CA and 1 other location

Practice Areas Explained

William F Colgin's Areas of Practice

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

IRS Disputes & Audits

William F Colgin is one of 2,917 irs attorneys indexed nationally. Browse irs attorneys in California →

Business & Corporate Law

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

William F Colgin is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

Tax Law

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

William F Colgin is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in California →

International Tax

William F Colgin is one of 1,693 international tax attorneys indexed nationally. Browse international tax attorneys in California →

White Collar Crimes

William F Colgin is one of 20,025 white collar attorneys indexed nationally. Browse white collar attorneys in California →

Jurisdictional Context

Why local counsel matters in California

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

Looking for additional California attorneys? Browse all attorneys in San Francisco or all attorneys in California.

Frequently Asked

Common questions about William F Colgin

Where is William F Colgin's law office located?
William F Colgin's law practice is located in San Francisco, California. The firm is Morgan, Lewis & Bockius LLP. You can contact the office directly through this profile page.
What practice areas does William F Colgin handle?
William F Colgin focuses on irs, business, tax, international tax, white collar. Each practice area listed reflects experience handling cases of that type in California.
How long has William F Colgin practiced law?
William F Colgin has 30+ years of legal experience and has been licensed since 1996.
Where did William F Colgin go to law school?
William F Colgin earned their education at (J.D., 1992); (B.A. University, 1987).
How can I contact William F Colgin for a consultation?
You can contact William F Colgin 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 William F Colgin received?
William F Colgin's notable recognition includes: Peer Reviewed.

Education

J.D.
University of Denver College of Law
- 1992
B.A. University
University of Wyoming
- 1987

Awards

Peer Reviewed

Bar Admissions

U.S. Tax Court U.S. District Court, Northern District of California U.S. Court of Federal Claims U.S
Admitted: 1996
California
Admitted: 1997
Wyoming
Admitted: 2019
Colorado
Admitted: 2019

Reviews

5.0
2 Review
5 0
4 0
3 0
2 0
1 0
These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.