Atty. Mario Casillas

Atty. Mario Casillas

Mario Casillas is a lawyer practicing general practice, estate planning. Mario received a degree from Loyola Law School, and has been licensed for 29 years.

San Gabriel San Gabriel 29 yrs experience 29 year
Call (626) 628-0030 Book Appointment

Profile Summary

About Mario Casillas at a glance

Mario Casillas is a Member based in San Gabriel, California, practicing at Law Office Of Mario Casillas. They have 29+ years of legal experience, licensed to practice since 1997. Their practice focuses on estate planning. Admitted to practice in California (1997). Educated at Loyola Law School Loyola Law School Loyola Law School Los Angeles CA Los Angeles CA Los Angeles CA Univ of California Berkeley Univ of California Berkeley Univ of California Berkeley Berkeley (—). Serands clients in San Gabriel, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mario Casillas is a lawyer practicing general practice, estate planning
  • Mario received a degree from Loyola Law School, and has been licensed for 29 years
  • Mario practices at Law Office of Mario Casillas in San Gabriel, CA

Practice Areas Explained

Mario Casillas's Areas of Practice

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

Estate Planning & Probate

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

Mario Casillas is one of 226,536 estate planning attorneys indexed nationally. Browse estate planning 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 Gabriel 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 Gabriel or all attorneys in California.

Frequently Asked

Common questions about Mario Casillas

Where is Mario Casillas's law office located?
Mario Casillas's law practice is located in San Gabriel, California. The firm is Law Office Of Mario Casillas. You can contact the office directly through this profile page.
What practice areas does Mario Casillas handle?
Mario Casillas focuses on estate planning. Each practice area listed reflects experience handling cases of that type in California.
How long has Mario Casillas practiced law?
Mario Casillas has 29+ years of legal experience and has been licensed since 1997.
Where did Mario Casillas go to law school?
Mario Casillas earned their education at (—).
How can I contact Mario Casillas for a consultation?
You can contact Mario Casillas 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

Loyola Law School Loyola Law School Loyola Law School Los Angeles CA Los Angeles CA Los Angeles CA Univ of California Berkeley Univ of California Berkeley Univ of California Berkeley Berkeley
- In Progress

Bar Admissions

California
Admitted: 1997

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