Atty. Mark Mansour

Atty. Mark Mansour

Mark Mansour is a lawyer practicing congressional investigations & crisis management, health care, life sciences and 1 other area of law. Mark received a B.A. degree from Georgetown University in 1979, and has been licensed for 38 years.

Washington Washington 38 yrs experience 38 year
Call (771) 717-3465 Book Appointment

Congressional Investigations & Crisis Management & More Attorney · Serving Washington, DC · 38+ Years Experience

Profile Summary

About Mark Mansour at a Glance

Mark Mansour is a Partner based in Washington, District of Columbia, practicing at Mayer Brown Llp. They have 38+ years of legal experience, licensed to practice since 1988. Their practice focuses on litigation and health care. Admitted to practice in Michigan (1988) and District of Columbia U.S Court of Appeals for the Federal Circuit U.S District Court for the Eastern (2003). Educated at Georgetown University Law Center (J.D., 1988) and Georgetown University (B.A., 1979). Serves clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Mark Mansour

  • Mark Mansour is a lawyer practicing congressional investigations & crisis management, health care, life sciences and 1 other area of law
  • Mark received a B.A. degree from Georgetown University in 1979, and has been licensed for 38 years
  • Mark practices at Mayer Brown LLP in Washington, DC

Practice Areas Explained

Mark Mansour's Areas of Legal Practice

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

Civil Litigation in Washington

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

Mark Mansour is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in District of Columbia →

Health Care Law in Washington

Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.

Mark Mansour is one of 66,157 health care attorneys indexed nationally. Browse health care attorneys in District of Columbia →

Jurisdictional Context

Why Local Counsel Matters in Washington

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 venue, 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.

Washington Courts and Legal Process

Choosing a Washington-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 District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.

Frequently Asked

Common Questions About Mark Mansour

Where is Mark Mansour's law office located?
Mark Mansour's law practice is located in Washington, District of Columbia. The firm is Mayer Brown Llp. You can contact the office directly through this profile page.
What practice areas does Mark Mansour handle?
Mark Mansour focuses on litigation, health care. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Mark Mansour practiced law?
Mark Mansour has 38+ years of legal experience and has been licensed since 1988.
Where did Mark Mansour go to law school?
Mark Mansour earned their education at (J.D., 1988); (B.A., 1979).
How can I contact Mark Mansour for a consultation?
You can contact Mark Mansour 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 Washington Choose Mark Mansour

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 Mansour's practice in the field of litigation and health care.

Decade-Tested Legal Experience

Mark Mansour brings 38+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Multi-State Bar Admission

Licensed in Michigan and District of Columbia U.S Court of Appeals for the Federal Circuit U.S District Court for the Eastern, Mark Mansour can represent clients in cases that span state lines or require counsel in multiple jurisdictions.

Broad Practice Area Coverage

Covering litigation and health care, Mark Mansour can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Washington

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

Search Reference

How People Find Mark Mansour Online

Prospective clients searching for legal help in Washington 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 Mansour.

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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 Mansour directly.

Education & Law School Background

J.D.
Georgetown University Law Center
- 1988
B.A.
Georgetown University
- 1979

Bar Admissions & Licensed Jurisdictions

Michigan
Admitted: 1988
District of Columbia U.S Court of Appeals for the Federal Circuit U.S District Court for the Eastern
Admitted: 2003

Client Reviews & Ratings — Mark Mansour

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