I am a results-oriented, energetic advocate for my clients. I am passionate about representing my clients. As most cases come from word-of-mouth referrals, I am proud of my reputation built one client at a time. Most clients are faced with a difficult challenge in a critical part of their lives: their jobs and careers. I am competitive and look forward to taking the fight to the employer to redress unfair and illegal actions. I align our firm's fee arrangement with the client's desired outcome so that there is an identity of interest in the result sought. My success is defined by each client obtaining the desired outcome as a consequence of my effective counsel. Most of all, I love what I do, and that is helping people and seeking fair results for clients who deserve better treatment from their employers.
5
Practice Areas
37 years | 5,000 cases
37 years | 200 cases
37 years | 400 cases
37 years | 500 cases
33%-40%
State: New Jersey
Acquired: 1989
No misconduct found
State: New York
Acquired: 1989
No misconduct found
State: District of Columbia
Acquired: 1991
No misconduct found
177 Client Reviews
Showing 16 - 20 of 111 reviews | Case Results
Posted by Paul | May 27, 2022 | Hired Attorney | Employment & Labor
The Real Deal - Highly Recommend
My past employer tried to cheat me out of commissions I worked on over a period of three years. I was having a tremendous amount of trouble resolving the issue on my own. As soon as Jonathan got involved things started moving in my direction. I honestly believe I would not have recovered the mon...
Posted by Andrew | March 20, 2022 | Hired Attorney
The Conor McGregor of Employment Lawyers
Jonathan is exactly the person you want defending your interests. He is passionate about what he does, compassionate about his clients, a phenomenal negotiator, has deep knowledge about the law, and uses excellent judgment in well-timed and game-winning moves. His advice has been priceless to me an...
Posted by anonymous | March 14, 2022 | Hired Attorney | Employment & Labor
Helped me out when I really needed it
I was suddenly let go from my job under shady circumstances, and I was so scared of my company that I wanted someone to make sure that it was actually in my best interest to sign their release and accept their severance. I called several attorneys and they all wanted hundreds of dollars to read m...
Posted by anonymous | February 02, 2022 | Hired Attorney | Arbitration
Someone who truly puts his client first
I reached out to Jonathan to help me arbitrate a case against my former employer. From day one Jonathan explained the process and steps involved. I was always consulted and my opinion was taken into account. He diligently prepared the case and fought it. His team was outstanding, taking down a powerf...
Posted by anonymous | January 17, 2022
Amazing lawyer
Jonathan goes above and beyond for his clients. He is an extraordinarily talented attorney, but also a great person who is truly focused on accomplishing what is in the best interest of the client. Over the years Jonathan has provided me with great advice and council and he has always been able to qu...
"Jonathan is one of the most professional, effective, and direct attorneys I have ever met. His knowledge of labor and employment law is vast and very respected. You can't go wrong having him on your team."
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2025
Super Lawyer, Super Lawyers
2024
Super Lawyer, Super Lawyers
2024
Client's Choice, Avvo
2023
Super Lawyer, Super Lawyers
2017
Super Lawyer, Super Lawyers
1986
Dewey Scholarship, Dewey Scholarship
1989 - Present
Partner, Sack & Sack, LLP
1989 - Present
New York State Bar Association
1989
JD - Juris Doctor
1986
BA - Bachelor of Arts
English