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Jonathan David Marx
also known as Jon Marx
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About Jonathan
Biography
I am a founding partner of the personal injury law firm of KaplunMarx. We are 100% focused on helping clients when they are injured in accidents throughout Pennsylvania and New Jersey. I have been a catastrophic injury trial lawyer ever since passing the bar exam in 1986, and have the knowledge and experiance to get top dollar results for our clients.
At KaplunMarx we strive to treat our clients like we would want someone to treat our family, we encourage you to check out our reviews on Google, Yelp, Facebook, & Avvo and see for yourself.
Top Philadelphia Personal Injury Lawyers at KaplunMarx, PLLC.
Premier Philadelphia Personal Injury Lawyer at KaplunMarx, PLLC.
Practice Areas
12
Practice Areas
Personal Injury
45%
Animal and Dog Bites
5%
Birth Injury
5%
Brain Injury
5%
Fees and Rates
Cost
Contingency
33%-40%
Payment Methods
- Cash
- Check
- Credit Card
Awards
2013
Licenses
Licensed in New Jersey for 39 years
State: New Jersey
Acquired: 1986
No misconduct found
Licensed in Pennsylvania for 39 years
State: Pennsylvania
Acquired: 1986
No misconduct found
Location
KaplunMarx Accident & Injury Lawyers
115 South 8th Street, Suite #5, Philadelphia, PA, 19106
www.kaplunmarx.comKaplunMarx Accident & Injury Lawyers
(610) 572-7301
Fax
333 E. City Ave. Suite 300, Bala Cynwyd, PA, 19004
www.kaplunmarx.comKaplunMarx Accident & Injury Lawyers
10000 Lincoln Drive East, #201, Marlton, NJ, 08053
www.kaplunmarx.comKaplunMarx Accident & Injury Lawyers
401 Walnut St., Suite 27, Allentown, PA, 18102
www.kaplunmarx.comGallery
Online Presence
Other places you can find Jonathan online.
Jonathan David Marx's Reviews
Avvo Review Score
9 Client Reviews
Filter Avvo Reviews (9)
Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.
Practice Areas
Showing 1 - 4 of 4 reviews | Recommendation
Posted by Irene | August 19, 2016 | Medical Malpractice
Professional, classy, sympathetic
Jonathan Marx had agreed to help me out with a very unusual matter on a contingency basis. It was a case of a poorly done plastic surgery procedure and the surgeon (Dr. Robert Mirabile of Blue Bell) refusing to make corrections, making it a case of contract breach. We wanted to recover money I had ...
Jonathan Marx
Replied last August 19, 2016Glad to have been able to help such a nice client, thank you for your kind words!
Posted by heidi | August 19, 2016 | Car Accidents
Excellent Attorneys
I highly recommend Attorneys Kaplan and Marx...they went above and beyond in our auto accident case....very knowledgeable, attentive and personable. We would definitely use them again in the future.
Jonathan Marx
Replied last August 19, 2016Always happy to help a client, thanks for the kind words.
Posted by Justin | March 20, 2016
HIGHLY RECOMMEND Jonathan Marx!
It was my first time ever needing a lawyer in my life. I chose right to go with KaplunMarx. Ted and John have helped me every step of the way. I didn't know what to do with my situation...Ted and John were always available, responded in a timely manner, and very professional. I had the pleasure o...
Jonathan Marx
Replied last March 20, 2016Happy we could help!
Posted by Carol | June 03, 2014 | Personal Injury
Car Accident Lawyer
Mr. Marx helped me through a difficult injury case, a few other lawyers wouldn't even take my case, but Mr. Marx fought for me. I will send anyone I know to KaplunMarx if they have a personal injury case. Thank you Mr. Marx!
Jonathan David Marx's Lawyer Endorsements
"Jonathan Marx is a talented and well respected personal injury attorney. I would highly recommend him to anyone looking for a lawyer who knows the law, truly cares about protecting the rights of his clients and getting them the most favorable result possible."
"I have known Jon for over seven years. He is an excellent attorney who cares deeply about his clients. I give him my highest recommendation."
"Simply said, Jonathan is an outstanding criminal attorney. Highly recommended!"
"Outstanding Philadelphia personal injury and car accident lawyer! Mr. Marx and his team go the extra mile in helping all of their clients navigate the complex legal issues involved in car accident insurance coverage, including what policies allow or require, how to get them to pay, how to get your medical treatment, and how to get the most money possible in your pocket at the end of the case. He is aggressive with insurance company adjusters and lawyers, and will take the time to learn and tell your story effectively. Overall, highly recommended!"
"Jon is a rarity in today's legal world, an attorney who truly cares about his clients. Highly recommend Mr. Marx if you need an attorney!"
"Jonathan is an excellent criminal defense lawyer. A zealous advocate for his clients and well respected in the legal community. Highly recommended attorney."
"I endorse this lawyer."
Alexandra Gonzalez-Waddington
Criminal defense lawyer | Oct 14
Relationship: Fellow lawyer in community
"I endorse this lawyer."
"Top-notch attorney. I endorse this lawyer."
"I endorse this lawyer."
"I endorse this lawyer."
"I endorse this lawyer."
"I endorse this lawyer."
"I endorse this lawyer. He is well known in the community as a tireless advocate for his clients."
"I endorse this lawyer with no reservation. An extremely talented and well respected attorney in the legal community. Very hardworking and diligent. Consistently achieves superior results. Advice is always practical and on point. I recommend to anyone looking for an attorney who knows the law and truly cares about protecting the rights of clients and achieving the most favorable result possible.I endorse this lawyer."
"Great lawyer. Great reputation. Great results. Stop and make the call now. You can't go wrong."
"Well-known and well-respected lawyer at the top of his field. Highly recommended."
"I endorse this lawyer. Attorney Marx is a very well respected attorney who consistently achieves exceptional results for his clients."
"I endorse this lawyer. Johathan is a well known, effective advocate."
"I endorse this lawyer."
Bernard Williams
Business lawyer
Ashley Killeen
Personal injury lawyer
Elizabeth Kroll
Family lawyer
Christopher Day
Personal injury lawyer
Ryan Paulus
Car accident lawyer
Timothy O'Laughlin
Criminal defense lawyer
Sean Cleary
Personal injury lawyer
Todd Mosser
Criminal defense lawyer
Michael Smith
Personal injury lawyer
Patrick Murray
Personal injury lawyer
Daniel Tripathi
Criminal defense lawyer
Steffanie Walczak
Criminal defense lawyer
Nathaniel Wojan
Criminal defense lawyer
Jared Adams
DUI and DWI lawyer
V. Iyer
Criminal defense lawyer
J. Shumaker
Criminal defense lawyer
Richard Rosenstein
Personal injury lawyer
Zaheer Shah
Personal injury lawyer
L. Ramunno
Personal injury lawyer
Michael Waddington
Criminal defense lawyer
Experience
Honors
2025
Super Lawyer, Super Lawyers
2022
Top 100 Trial Lawyers, National Trial Lawyers
2021
Top 50 Truck Accident Settlements in the United States in 2020, TopVerdict
2015
Top 100 Litigators in Pennsylvania, American Society of Legal Advocates
2015
Top Contributor Personal Injury, AVVO
2015
Top Pennsylvania Attorney, Who's Who In American Law
2014
Top Contributor Personal Injury, AVVO
2014
Top 100 Litigation Lawyers in Pennsylvania, American Society of Legal Advocates
2014
Top Contributor Criminal Defense, AVVO
2014
Who's Who In American Law, Who's Who In American Law
2013
Who's Who In American Law, Who's Who In American Law
2012
Who's Who In American Law, Who's Who In American Law
2011
Who's Who In American Law, Who's Who In American Law
2010
Who's Who In American Law, Who's Who In American Law
2003
Coaching Award, MLGBA
Work Experience
2013 - Present
Partner, KaplunMarx, PLLC
2003 - 2013
Associate, Law Offices of Robert Katz
2001 - 2003
Associate, Kane & Silverman, PC
1998 - 2001
Associate, Law Office of Milton J. Frank
Associations
1986 - Present
Pennsylvania Bar AssociationAttorney Member
1986 - Present
New Jersey State Bar AssociationAttorney Member
1980 - Present
Beta Sigma BetaMember
Sample of Legal Cases
Top 50 Truck Accident Settlements in the United States in 2020
$1,591,666.00
Premises Liability
$700,000.00 Settlement
Auto Accident
$150,000.00 Verdict achieved
Education
1986
Brooklyn Law School
JD - Juris Doctor
1983
Pennsylvania State University
BA - Bachelor of Arts
Speaking Engagements
2014
Main Line III
Personal Injury Cases - The Do's and Dont's
2014
Business Leaders Spotlight Show
How to Maximize Your Personal Injury Case
2014
AEC Attorney Meeting
Pennsylvania Personal Injury Do's & Dont's
2013
CCI - New Jersey
State and Federal Law relating to medical marijuana
Publications
2016
2016
KM Law Blog
Does Sedgwick Pay Injury Claims? Learn the Truth
2015
2015
2015
2015
KM Law Blog
Help With Injury Caused by a Distracted Driver
2015
2015
KM Law Blog
My Child Was Hurt In An Accident – Can We Sue?
2015
KM Law Blog
Can I fire my personal injury lawyer ?
2015
2015
2015
KM Law Blog
HOW MUCH IS MY INJURY CASE WORTH?
2015
2014
KM Law Blog
Holiday Season Safe Driving Tips
2014
Philly Law Blog
Understanding UM/UIM Coverage in a PA Auto Insurance Policy
2014
Philly Legal Blog
4 Important Tips to Help Truck Accident Victims
2013
Philly Legal Blog
10 Key Points to remember if you’re involved in a Car Accident
2013
Philly Law Blog
Fatal Car Accident on I-76
2013
Philly Law Blog
Car Accidents on Roosevelt Blvd., preventable?
2013
Philly Legal Blog
Is a painted yellow line enough? A SEPTA accident lawyer perspective
Languages
English
Spanish
Activity
Legal Answers
Legal Guides
Top Contributor
Jonathan earned significant contribution points in 2013.
Legal Answers
Q&A
How do I go about getting a lawyer to sue Walmart ?
19 Feb 2021
Q&A
How can I sue a physician assistant for not doing his job properly reviewing my test results?
29 Aug 2016
Q&A
I broke my ankle at work and had to have surgery and have a big scar, Can I sue over the scar
25 Aug 2016