Atty. Mary Celeste Costa

Atty. Mary Celeste Costa

Mary Celeste Costa is a lawyer practicing corporate & incorporation, environmental and natural resources, financial markets and services and 2 other areas of law. Mary received a B.S. degree from Duquesne University in 1985, and has been licensed for 28 years.

Los Angeles Los Angeles 28 yrs experience 28 year
Call (213) 634-7002 Book Appointment

Profile Summary

About Mary Celeste Costa at a glance

Mary Celeste Costa is an Attorney based in Los Angeles, California, practicing at Latham & Watkins LLP. They have 28+ years of legal experience, licensed to practice since 1998. Their practice focuses on formation, tax, litigation, and environmental. Admitted to practice in California (1998). Educated at Loyola Law School, Los Angeles (J.D., 1998) and Duquesne University (B.S. University, 1985). Serands clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mary Celeste Costa is a lawyer practicing corporate & incorporation, environmental and natural resources, financial markets and services and 2 other areas of law
  • Mary received a B.S. degree from Duquesne University in 1985, and has been licensed for 28 years
  • Mary practices at Latham & Watkins LLP in Los Angeles, CA

Practice Areas Explained

Mary Celeste Costa's Areas of Practice

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

Business Formation

Mary Celeste Costa is one of 35,584 formation attorneys indexed nationally. Browse formation attorneys in California →

Tax Law

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

Mary Celeste Costa is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in California →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Mary Celeste Costa is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in California →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

Mary Celeste Costa is one of 56,434 environmental attorneys indexed nationally. Browse environmental 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 Mary Celeste Costa

Where is Mary Celeste Costa's law office located?
Mary Celeste Costa's law practice is located in Los Angeles, California. The firm is Latham & Watkins LLP. You can contact the office directly through this profile page.
What practice areas does Mary Celeste Costa handle?
Mary Celeste Costa focuses on formation, tax, litigation, environmental. Each practice area listed reflects experience handling cases of that type in California.
How long has Mary Celeste Costa practiced law?
Mary Celeste Costa has 28+ years of legal experience and has been licensed since 1998.
Where did Mary Celeste Costa go to law school?
Mary Celeste Costa earned their education at (J.D., 1998); (B.S. University, 1985).
How can I contact Mary Celeste Costa for a consultation?
You can contact Mary Celeste Costa 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

J.D.
Loyola Law School, Los Angeles
- 1998
B.S. University
Duquesne University
- 1985

Bar Admissions

California
Admitted: 1998

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