Atty. Mark David Piesner

Atty. Mark David Piesner

Mark David Piesner is a lawyer practicing business law, capital markets, communications and 15 other areas of law. Mark received a B.S. degree from Massachusetts Institute of Technology in 1993, and has been licensed for 19 years.

San Diego San Diego 19 yrs experience 19 year
Call (858) 947-0368 Book Appointment

Business Law & More Attorney · Serving San Diego, CA · 19+ Years Experience

Profile Summary

About Mark David Piesner at a Glance

Mark David Piesner is an Associate based in San Diego, California, practicing at Latham & Watkins LLP. They have 19+ years of legal experience, licensed to practice since 2007. Their practice focuses on contracts, family law, business, m&a, and securities. Admitted to practice in California (2007). Educated at Univeristy of California, Los Angeles (J.D., 2007) and Massachusetts Institute of Technology (B.S., 1993). Serves clients in San Diego, CA and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Mark David Piesner

  • Mark David Piesner is a lawyer practicing business law, capital markets, communications and 15 other areas of law
  • Mark received a B.S. degree from Massachusetts Institute of Technology in 1993, and has been licensed for 19 years
  • Mark practices at Latham & Watkins LLP in San Diego, CA

Practice Areas Explained

Mark David Piesner's Areas of Legal Practice

Each practice area below reflects the types of cases Mark David Piesner handles, with a practical overview of what that area of law involves and how it may apply to your situation in San Diego.

Contracts in San Diego

Mark David Piesner is one of 76,101 contracts attorneys indexed nationally. Browse contracts attorneys in California →

Family Law in San Diego

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

Mark David Piesner is one of 185,688 family law attorneys indexed nationally. Browse family law attorneys in California →

Business & Corporate Law in San Diego

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

Mark David Piesner is one of 497,491 business attorneys indexed nationally. Browse business attorneys in California →

Mergers & Acquisitions in San Diego

Mark David Piesner is one of 49,430 m&a attorneys indexed nationally. Browse m&a attorneys in California →

Securities Law in San Diego

Mark David Piesner is one of 64,075 securities attorneys indexed nationally. Browse securities attorneys in California →

Jurisdictional Context

Why Local Counsel Matters in San Diego

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 Diego 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 venue, 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.

San Diego Courts and Legal Process

Choosing a San Diego-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

Looking for additional California attorneys? Browse all attorneys in San Diego or all attorneys in California.

Frequently Asked

Common Questions About Mark David Piesner

Where is Mark David Piesner's law office located?
Mark David Piesner's law practice is located in San Diego, California. The firm is Latham & Watkins LLP. You can contact the office directly through this profile page.
What practice areas does Mark David Piesner handle?
Mark David Piesner focuses on contracts, family law, business, m&a, securities. Each practice area listed reflects experience handling cases of that type in California.
How long has Mark David Piesner practiced law?
Mark David Piesner has 19+ years of legal experience and has been licensed since 2007.
Where did Mark David Piesner go to law school?
Mark David Piesner earned their education at (J.D., 2007); (B.S., 1993).
How can I contact Mark David Piesner for a consultation?
You can contact Mark David Piesner 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.

Professional Profile

Why Clients in San Diego Choose Mark David Piesner

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Mark David Piesner's practice in the field of contracts, family law, business, m&a, and securities.

Decade-Tested Legal Experience

Mark David Piesner brings 19+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Broad Practice Area Coverage

Covering contracts, family law, and business, Mark David Piesner can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in San Diego

A San Diego-based practice means Mark David Piesner attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues Mark David Piesner Handles in San Diego

Below is a representative sample of the types of matters Mark David Piesner has experience with under California law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

Divorce and property division
Family Law
Child custody and support
Family Law
Spousal support (alimony)
Family Law
Prenuptial agreements
Family Law
Business formation and structure
Business
Contract drafting and review
Business
Partnership disputes
Business
Merger and acquisition support
Business

This list is illustrative, not exhaustive. Contact Mark David Piesner directly to discuss the specifics of your situation.

Search Reference

How People Find Mark David Piesner Online

Prospective clients searching for legal help in San Diego commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Mark David Piesner.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Mark David Piesner directly.

Education & Law School Background

J.D.
Univeristy of California, Los Angeles
- 2007
B.S.
Massachusetts Institute of Technology
- 1993

Bar Admissions & Licensed Jurisdictions

California
Admitted: 2007

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