Atty. Mark David Byrne

Atty. Mark David Byrne

Mark David Byrne is a lawyer practicing civil litigation, probate, trusts and estates and 8 other areas of law. Mark received a B.S. degree from University of California at Riverside in 1980, and has been licensed for 43 years.

Berkeley Berkeley 43 yrs experience 43 year
Call (628) 218-5342 Book Appointment

Profile Summary

About Mark David Byrne at a glance

Mark David Byrne is a Counsel based in Berkeley, California, practicing at Law Offices of Triano & Byrne. They have 43+ years of legal experience, licensed to practice since 1983. Their practice focuses on trusts, probate, family law, business, and bankruptcy. Admitted to practice in California (1983), U.S. District Court, Eastern District of California (1983), and U.S. District Court, Northern District of California (1985). Educated at McGeorge School of Law (J.D., 1983) and University of California at Riverside (B.S., 1980). Active member of State Bar of California. Serands clients in Berkeley, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark David Byrne is a lawyer practicing civil litigation, probate, trusts and estates and 8 other areas of law
  • Mark received a B.S. degree from University of California at Riverside in 1980, and has been licensed for 43 years
  • Mark practices at Law Offices of Triano & Byrne in Berkeley, CA

Practice Areas Explained

Mark David Byrne's Areas of Practice

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

Trusts

Mark David Byrne is one of 104,172 trusts attorneys indexed nationally. Browse trusts attorneys in California →

Probate

Mark David Byrne is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in California →

Family Law

Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.

Mark David Byrne is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in California →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Mark David Byrne is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

Bankruptcy & Debt

A bankruptcy attorney can help you eliminate debt, stop creditor harassment, and protect your home through Chapter 7 or Chapter 13.

Mark David Byrne is one of 105,321 bankruptcy attorneys indexed nationally. Browse bankruptcy 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 Berkeley 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 Berkeley or all attorneys in California.

Frequently Asked

Common questions about Mark David Byrne

Where is Mark David Byrne's law office located?
Mark David Byrne's law practice is located in Berkeley, California. The firm is Law Offices of Triano & Byrne. You can contact the office directly through this profile page.
What practice areas does Mark David Byrne handle?
Mark David Byrne focuses on trusts, probate, family law, business, bankruptcy. Each practice area listed reflects experience handling cases of that type in California.
How long has Mark David Byrne practiced law?
Mark David Byrne has 43+ years of legal experience and has been licensed since 1983.
Where did Mark David Byrne go to law school?
Mark David Byrne earned their education at (J.D., 1983); (B.S., 1980).
How can I contact Mark David Byrne for a consultation?
You can contact Mark David Byrne 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.
McGeorge School of Law
- 1983
B.S.
University of California at Riverside
- 1980

Bar Admissions

California
Admitted: 1983
U.S. District Court, Eastern District of California
Admitted: 1983
U.S. District Court, Northern District of California
Admitted: 1985

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