Atty. David L. Sinak

Atty. David L. Sinak

Mr. David L.

Los Angeles Los Angeles 47 yrs experience 47 year
Call (424) 499-1599 Book Appointment

Profile Summary

About David L. Sinak at a glance

David L. Sinak is a Partner based in Los Angeles, California, practicing at Gibson Dunn And Crutcher Llp. They have 47+ years of legal experience, licensed to practice since 1979. Their practice focuses on business and tax. Admitted to practice in Texas U.S. Tax Court U.S. Court of Federal Claims U.S. Federal District Court, Northern District of (1979). Educated at Boston College Law School (Juris Doctor, 1979). Recognitions include AV Preeminent. Serands clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. David L. Sinak is a lawyer practicing tax, private equity
  • David received a degree from Boston College Law School in 1979, and has been licensed for 47 years
  • David practices at Gibson, Dunn & Crutcher LLP in Los Angeles, CA and 1 other location

Practice Areas Explained

David L. Sinak's Areas of Practice

Each practice area below reflects the types of cases David L. Sinak 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.

David L. Sinak 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.

David L. Sinak is one of 85,302 tax attorneys indexed nationally. Browse tax 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 Los Angeles 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 Los Angeles or all attorneys in California.

Frequently Asked

Common questions about David L. Sinak

Where is David L. Sinak's law office located?
David L. Sinak's law practice is located in Los Angeles, California. The firm is Gibson Dunn And Crutcher Llp. You can contact the office directly through this profile page.
What practice areas does David L. Sinak handle?
David L. Sinak focuses on business, tax. Each practice area listed reflects experience handling cases of that type in California.
How long has David L. Sinak practiced law?
David L. Sinak has 47+ years of legal experience and has been licensed since 1979.
Where did David L. Sinak go to law school?
David L. Sinak earned their education at (Juris Doctor, 1979).
How can I contact David L. Sinak for a consultation?
You can contact David L. Sinak 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 David L. Sinak received?
David L. Sinak's notable recognition includes: AV Preeminent.

Practice Areas

Education

Juris Doctor
Boston College Law School
- 1979

Awards

AV Preeminent

Bar Admissions

Texas U.S. Tax Court U.S. Court of Federal Claims U.S. Federal District Court, Northern District of
Admitted: 1979

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