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Koonz McKenney Johnson & DePaolis LLP

United States 2025

Overview

The law firm of Koonz, McKenney, Johnson & DePaolis, LLP represents clients from Virginia, Maryland, and the District of Columbia in all aspects of personal injury litigation. For over 25 years our attorneys have protected the rights of workers and have spoken for the victims harmed by substandard medical care, defective products, and unsafe work places. We represent people who have been injured in auto accidents, construction site accidents, as a result of medical negligence, and through exposure to harmful substances such as asbestos, silica, lead paint, or defective products. Our attorneys are at the top of their profession and offer unparalleled legal representation. We have easily accessible offices in Virginia, Maryland, and D.C.

The founding partners, Joseph H. Koonz, Jr., Carolyn McKenney, and Roger C. Johnson began this firm in 1979 with a shared goal of aggressively defending the rights of individuals. We have founded a law firm dedicated to representing injured people, one client at a time. In keeping with this goal, we do not represent insurance companies or corporate clients. Rather, we exclusively represent individuals who have been injured through no fault of their own, including those entitled to workers' compensation or Social Security Disability benefits.

Koonz, McKenney, Johnson & DePaolis LLP provides our clients with the highest level of competent, personalized legal representation available in the Washington, D.C. metropolitan area. Each Maryland, Virginia and Washington DC personal injury lawyer at our firm has developed the knowledge, resources, and contacts to handle large, complex cases without losing the personalized commitment of a small, hometown law firm.

Koonz, McKenney, Johnson & DePaolis LLP has offices in Fairfax, Virginia, Greenbelt, Maryland, and the District of Columbia. Our work in the courts of all three jurisdictions has established our attorneys as aggressive representatives of our injured clients. We are, first and foremost, a firm of trial lawyers who vigorously pursue claims of injured people in the local and federal courts in all three jurisdictions.

The attorneys of Koonz, McKenney, Johnson & DePaolis LLP pride themselves on making our community a safer place to live and raise our children through our aggressive representation of injured people. Through our efforts, we have protected consumers from future injuries by forcing corporations to change the design of defective products and to alter harmful conduct. As a result, we believe we have made our community a better place for everyone.

To learn more about our law firm, contact us today.
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Practice Areas:
2
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Best Lawyers Recognized:
5

Rankings

Regional

Washington, D.C.

Tier
1
Washington, D.C.
Personal Injury Litigation - Plaintiffs
Tier
3
Washington, D.C.
Appellate Practice

Rankings

Regional

Washington, D.C.

Tier
1
Washington, D.C.
Personal Injury Litigation - Plaintiffs
Tier
3
Washington, D.C.
Appellate Practice

Practice Areas

Koonz McKenney Johnson & DePaolis LLP has been ranked by Best Law Firms for excellence in 2 specialties, reflecting the firm's commitment to delivering outstanding legal services.
Additionally, the firm provides services in these practice areas:
  • Appellate Practice
  • Personal Injury Litigation - Plaintiffs

Individuals Recognized in The Best Lawyers in America®

Koonz McKenney Johnson & DePaolis LLP proudly has 5 lawyers recognized for their outstanding professional performance in the 2025 edition of The Best Lawyers in America®. This peer-reviewed honor highlights individual excellence and directly qualifies the firm for consideration in the prestigious Best Law Firms rankings. For over four decades, Best Lawyers has been the gold standard for recognizing top legal talent, serving as the cornerstone for Best Law Firms awards. Learn more about our rigorous Best Lawyers research and selection process.
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Offices & Contacts

Washington, DC
Fairfax, VA
WillowWood Plaza, Suite 200
10300 Eaton Place
Fairfax, VA 22030
United States
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