Koonz McKenney Johnson & DePaolis LLP
- Nilufa Yeasmin
- Aug 10
- 6 min read

Koonz McKenney Johnson & DePaolis LLP is a personal injury law firm with offices in Washington, D.C., Maryland, and Virginia. They’ve been representing injured people for more than 40 years. Over that time, they’ve built a reputation for taking on big cases — and winning.
What sets them apart isn’t just the number of cases they’ve handled or the millions they’ve recovered. It’s how they treat people. From the first meeting, they focus on listening to the client’s story, understanding the impact of the injury, and explaining options in plain terms.
For many people, this is the first time they’ve ever needed a lawyer. The firm’s goal is to make the process less stressful while fighting for the best possible outcome.
Personal Injury Services in D.C., Maryland, and Virginia
Koonz McKenney Johnson & DePaolis LLP covers almost every type of personal injury case. Their areas of focus include:
Car accidents
Truck accidents
Motorcycle crashes
Pedestrian and bicycle injuries
Slip-and-fall and premises liability
Construction site accidents
Medical malpractice
Workers’ compensation claims
Brain injury cases
Wrongful death lawsuits
For each case, the firm develops a strategy built around the client’s needs and the specific facts. That means gathering evidence, speaking to witnesses, reviewing records, and consulting with experts when needed.
Car Accident Attorneys in Washington DC and Virginia
Car accidents can lead to more than just damage to a vehicle. Victims often face hospital bills, ongoing treatment, missed work, and emotional stress.
The firm helps clients by:
Reviewing accident reports
Interviewing witnesses
Collecting medical records and bills
Working with accident reconstruction experts
Negotiating with insurance companies
They push for settlements that reflect the real cost of the accident, not just the first low offer an insurer might make.
Truck Accident Lawyers in Washington DC
Truck accident cases often involve multiple parties — the driver, the trucking company, and sometimes the manufacturer of the truck or its parts.
The attorneys investigate:
Driver logs for violations of hours-of-service rules
Truck maintenance and inspection records
Safety policies of the trucking company
Road and weather conditions at the time of the crash
Because trucks are heavily regulated, finding even one safety violation can make a huge difference in proving liability.

Motorcycle Accident Attorneys DC, Maryland, Virginia
Motorcycle riders often face unfair assumptions after an accident. Some people — including insurance adjusters — assume the rider was at fault.
The firm works to set the record straight. They gather photos, videos, and physical evidence, then use it to build a clear picture of what really happened. They also work with medical professionals to document the extent of injuries and how they affect daily life.
Pedestrian and Bicycle Accident Representation
Pedestrians and cyclists have little protection in a collision. A distracted driver can cause serious injuries in seconds.
Koonz McKenney Johnson & DePaolis LLP investigates whether the driver was speeding, texting, or violating traffic laws. They also check road design, lighting, and signage to see if unsafe conditions contributed to the crash.
Slip-and-Fall and Premises Liability Lawyers
A slip-and-fall may sound minor until you’ve experienced one. Broken bones, spinal injuries, and concussions can all result from a simple fall.
The firm works to prove that the property owner failed to maintain safe conditions. They collect cleaning and maintenance logs, security camera footage, and eyewitness accounts to build a case.
Construction Accident Attorneys
Construction sites are some of the most dangerous workplaces. Falls, collapsing structures, and heavy machinery accidents happen far too often.
The firm helps injured workers file workers’ compensation claims and also investigates whether a third party — such as a subcontractor or equipment manufacturer — shares responsibility for the accident.
Medical Malpractice Lawyers in DC
When doctors, nurses, or hospitals make mistakes, the results can be life-changing.
The firm’s medical malpractice work includes:
Misdiagnosis or delayed diagnosis
Surgical errors
Birth injuries
Incorrect medication or dosage
They work with independent medical experts to prove when treatment fell below the accepted standard of care.
Workers’ Compensation Attorneys DC, Maryland, Virginia
Workers’ comp should be straightforward, but in reality, many claims are delayed or denied.
The firm helps employees:
File initial claims correctly
Appeal denied claims
Ensure they receive proper wage replacement
Get coverage for all necessary medical care
They also look into whether a personal injury claim can be filed alongside the workers’ comp case for additional compensation.
Wrongful Death Attorneys in Washington DC and Virginia
When a loved one is lost due to negligence, families face grief and financial hardship.
The firm helps with wrongful death claims to cover:
Funeral and burial expenses
Lost income and benefits
Loss of companionship
Emotional distress
They approach these cases with compassion while still being aggressive in pursuing justice.
Brain Injury Lawyers
The effects of a traumatic brain injury can last a lifetime. Memory loss, reduced mobility, and difficulty working can all be part of the aftermath.
The firm works with neurologists, therapists, and life care planners to determine the true long-term cost of a brain injury and fight for full compensation.
How Koonz McKenney Johnson & DePaolis LLP Works With Clients
Clients often mention how approachable and responsive the attorneys are. They return calls promptly, answer questions directly, and make sure clients understand the process at every stage.
The firm works on a contingency fee for injury cases, which means no payment unless they win or settle your case.
Reputation and Client Reviews
Over four decades, the firm has earned strong reviews for both results and client service. Many clients say they felt respected, supported, and informed from start to finish.
My Personal Experience With Koonz McKenney Johnson & DePaolis LLP
In 2019, I was rear-ended on I-395 in heavy traffic. My car was totaled, and I suffered neck and back injuries.
From the first meeting, the attorneys listened to my concerns and explained my options. They took over dealing with the insurance company, found witnesses, and brought in an accident reconstruction expert.
When the case settled, I was able to cover all my medical expenses, replace my car, and recover my lost wages. I felt like I had a real team on my side.
Another Client’s Story
A construction worker suffered multiple fractures after a scaffolding collapse. The firm investigated and found the subcontractor had ignored safety regulations. The case ended with a settlement that covered medical care, rehabilitation, and time away from work.

Third Client Example
A woman injured in a slip-and-fall at a grocery store came to the firm after her claim was denied. The attorneys obtained surveillance footage and maintenance records showing the store had ignored a spill for over an hour. She received compensation for her medical bills, lost income, and pain and suffering.
Community Involvement
Koonz McKenney Johnson & DePaolis LLP also takes part in community programs. They support safety awareness campaigns, sponsor charity events, and volunteer their time to help educate people about legal rights.
Why People Choose Koonz McKenney Johnson & DePaolis LLP
Decades of personal injury experience
Offices in DC, Maryland, and Virginia
Willingness to take cases to trial
Clear communication from start to finish
Strong record of settlements and verdicts
Related Legal Keywords and Topics
Washington DC Personal Injury Lawyers
Helping accident victims across the region.
Car Accident Attorneys Virginia and Maryland
Standing up to insurance companies for fair compensation.
Truck Accident Lawyers Washington DC
Holding negligent drivers and trucking companies accountable.
Motorcycle Injury Lawyers DC
Protecting the rights of riders in injury cases.
Slip-and-Fall Attorneys Maryland and Virginia
Proving property owners failed to maintain safe premises.
Wrongful Death Lawyers Washington DC
Helping families seek justice after a tragic loss.
Tips for Protecting Your Injury Claim
Seek medical attention right away
Report the accident or injury immediately
Take photos and videos at the scene
Get contact information from witnesses
Keep all records, bills, and receipts
Avoid giving recorded statements to insurance companies without legal advice
How to Prepare for Your First Meeting With a Lawyer
Bring:
Accident reports
Medical records and bills
Photos or videos from the scene
Any letters or emails from insurance companies
A written timeline of what happened
Being organized from the start helps the attorney understand your case faster.
The Importance of Acting Quickly
Every injury case has a deadline for filing, called the statute of limitations. Waiting too long can result in losing your right to seek compensation. Acting fast also helps preserve evidence while it’s still fresh.
FINAL THOUGHTS
Koonz McKenney Johnson & DePaolis LLP has spent over four decades helping accident victims in DC, Maryland, and Virginia. They bring together experience, compassion, and a determination to win.
They’re not just lawyers — they’re advocates who stand by clients from the first meeting to the final resolution. For anyone dealing with a serious injury, this is the kind of team you want on your side.



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