Atty. Mark Patrick Weitzel

Atty. Mark Patrick Weitzel

Mark Patrick Weitzel is a lawyer practicing energy & infrastructure, renewable energy, mergers and acquisitions and 6 other areas of law. Mark received a A.B. degree from Stanford University in 1976, and has been licensed for 46 years.

San Francisco San Francisco 46 Years Experience 46 year
Call (424) 281-0553

Profile Summary

About Mark Patrick Weitzel at a glance

Mark Patrick Weitzel is a Partner based in San Francisco, California, practicing at Orrick, Herrington & Sutcliffe LLP. They have 46+ years of legal experience, licensed to practice since 1980. Their practice focuses on business, tax, m&a, energy, and international. Admitted to practice in California U.S. Tax Court (1980). Educated at University of California at Los Angeles School of Law (JD, 1980) and Stanford University (A.B., 1976). Recognitions include AV Preeminent. Serves clients in San Francisco, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Patrick Weitzel is a lawyer practicing energy & infrastructure, renewable energy, mergers and acquisitions and 6 other areas of law
  • Mark received a A.B. degree from Stanford University in 1976, and has been licensed for 46 years
  • Mark practices at Orrick, Herrington & Sutcliffe LLP in San Francisco, CA

Practice Areas Explained

Mark Patrick Weitzel's Areas of Practice

Each practice area below reflects the types of cases Mark Patrick Weitzel 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.

Mark Patrick Weitzel is one of 452,854 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.

Mark Patrick Weitzel is one of 77,130 tax attorneys indexed nationally. Browse tax attorneys in California →

Mergers & Acquisitions

Mark Patrick Weitzel is one of 45,724 m&a attorneys indexed nationally. Browse m&a attorneys in California →

Energy & Utilities Law

Energy attorneys for oil & gas, renewables, utility regulation, and energy sector transactions.

Mark Patrick Weitzel is one of 32,699 energy attorneys indexed nationally. Browse energy attorneys in California →

International Law

International law attorneys for cross-border transactions, trade, foreign investment, and treaties.

Mark Patrick Weitzel is one of 36,155 international attorneys indexed nationally. Browse international 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 venue, 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 Mark Patrick Weitzel

Where is Mark Patrick Weitzel's law office located?
Mark Patrick Weitzel's law practice is located in San Francisco, California. The firm is Orrick, Herrington & Sutcliffe LLP. You can contact the office directly through this profile page.
What practice areas does Mark Patrick Weitzel handle?
Mark Patrick Weitzel focuses on business, tax, m&a, energy, international. Each practice area listed reflects experience handling cases of that type in California.
How long has Mark Patrick Weitzel practiced law?
Mark Patrick Weitzel has 46+ years of legal experience and has been licensed since 1980.
Where did Mark Patrick Weitzel go to law school?
Mark Patrick Weitzel earned their education at (JD, 1980); (A.B., 1976).
How can I contact Mark Patrick Weitzel for a consultation?
You can contact Mark Patrick Weitzel 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 Mark Patrick Weitzel received?
Mark Patrick Weitzel's notable recognition includes: AV Preeminent.

Education

JD
University of California at Los Angeles School of Law
- 1980
A.B.
Stanford University
- 1976

Awards

AV Preeminent

Bar Admissions

California U.S. Tax Court
Admitted: 1980

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