Atty. Mark P. Guerrera

Atty. Mark P. Guerrera

Mark P. Guerrera is a lawyer practicing complex commercial litigation, securities litigation, alternative dispute resolution and 10 other areas of law.

Washington Washington 32 yrs experience 32 year
Call (771) 244-0800 Book Appointment

Profile Summary

About Mark P. Guerrera at a glance

Mark P. Guerrera is a Partner based in Washington, District of Columbia, practicing at Sidley Austin Llp. They have 32+ years of legal experience, licensed to practice since 1994. Their practice focuses on contracts, business, breach of contract, class action, and whistleblower. Admitted to practice in Virginia (1994), U.S. Court of Federal Claims (1995), District of Columbia (1996), and U.S. Court of Appeals, Federal Circuit and U.S. District Court, Eastern District of Virginia (1998). Educated at George Washington University Law School (J.D., 1994) and Georgetown University (B.A., 1991). Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark P. Guerrera is a lawyer practicing complex commercial litigation, securities litigation, alternative dispute resolution and 10 other areas of law
  • Mark P. received a B.A. degree from Georgetown University in 1991, and has been licensed for 32 years
  • Mark P. practices at Sidley Austin LLP in Washington, DC

Practice Areas Explained

Mark P. Guerrera's Areas of Practice

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

Contracts

Mark P. Guerrera is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in District of Columbia →

Business & Corporate Law

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

Mark P. Guerrera is one of 501,317 business attorneys indexed nationally. Browse business attorneys in District of Columbia →

Breach of Contract

Mark P. Guerrera is one of 5,938 breach of contract attorneys indexed nationally. Browse breach of contract attorneys in District of Columbia →

Class Action

Mark P. Guerrera is one of 26,424 class action attorneys indexed nationally. Browse class action attorneys in District of Columbia →

Whistleblower & Retaliation

Mark P. Guerrera is one of 3,552 whistleblower attorneys indexed nationally. Browse whistleblower attorneys in District of Columbia →

Jurisdictional Context

Why local counsel matters in District of Columbia

Practicing law in District of Columbia. Legal matters in District of Columbia are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Washington are typically filed in the local municipal court or the appropriate District of Columbia state district court, depending on subject matter and amount in controversy. An attorney licensed in District of Columbia 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 District of Columbia courts without local counsel or pro hac vice admission.

Looking for additional District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.

Frequently Asked

Common questions about Mark P. Guerrera

Where is Mark P. Guerrera's law office located?
Mark P. Guerrera's law practice is located in Washington, District of Columbia. The firm is Sidley Austin Llp. You can contact the office directly through this profile page.
What practice areas does Mark P. Guerrera handle?
Mark P. Guerrera focuses on contracts, business, breach of contract, class action, whistleblower. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Mark P. Guerrera practiced law?
Mark P. Guerrera has 32+ years of legal experience and has been licensed since 1994.
Where did Mark P. Guerrera go to law school?
Mark P. Guerrera earned their education at (J.D., 1994); (B.A., 1991).
How can I contact Mark P. Guerrera for a consultation?
You can contact Mark P. Guerrera 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.
George Washington University Law School
- 1994
B.A.
Georgetown University
- 1991

Bar Admissions

Virginia
Admitted: 1994
U.S. Court of Federal Claims
Admitted: 1995
District of Columbia
Admitted: 1996
U.S. Court of Appeals, Federal Circuit and U.S. District Court, Eastern District of Virginia
Admitted: 1998
U.S. Court of Appeals, Second Circuit
Admitted: 2010

Reviews

These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.