Atty. Mark Kenneth Castiglia

Atty. Mark Kenneth Castiglia

Mark Kenneth Castiglia is a lawyer practicing business. Mark received a degree from Columbia Univ SOL, and has been licensed for 13 years.

Los Angeles Los Angeles 13 yrs experience 13 year
Call (424) 313-5507 Book Appointment

Profile Summary

About Mark Kenneth Castiglia at a glance

Mark Kenneth Castiglia is an Attorney based in Los Angeles, California, practicing at Sidley Austin LLP. They have 13+ years of legal experience, licensed to practice since 2013. Their practice focuses on business. Admitted to practice in New York (2013) and California (2017). Educated at Columbia Univ SOL New York NY Colgate Univ Hamilton NY (—). Serands clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Kenneth Castiglia is a lawyer practicing business
  • Mark received a degree from Columbia Univ SOL, and has been licensed for 13 years
  • Mark practices at Sidley Austin LLP in Los Angeles, CA

Practice Areas Explained

Mark Kenneth Castiglia's Areas of Practice

Each practice area below reflects the types of cases Mark Kenneth Castiglia 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 Kenneth Castiglia is one of 501,317 business attorneys indexed nationally. Browse business 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 Mark Kenneth Castiglia

Where is Mark Kenneth Castiglia's law office located?
Mark Kenneth Castiglia's law practice is located in Los Angeles, California. The firm is Sidley Austin LLP. You can contact the office directly through this profile page.
What practice areas does Mark Kenneth Castiglia handle?
Mark Kenneth Castiglia focuses on business. Each practice area listed reflects experience handling cases of that type in California.
How long has Mark Kenneth Castiglia practiced law?
Mark Kenneth Castiglia has 13+ years of legal experience and has been licensed since 2013.
Where did Mark Kenneth Castiglia go to law school?
Mark Kenneth Castiglia earned their education at (—).
How can I contact Mark Kenneth Castiglia for a consultation?
You can contact Mark Kenneth Castiglia 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.

Practice Areas

Education

Columbia Univ SOL New York NY Colgate Univ Hamilton NY
- In Progress

Bar Admissions

New York
Admitted: 2013
California
Admitted: 2017

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