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 121 - 125 of 177 reviews
Posted by anonymous | April 24, 2019 | Hired Attorney | Employment & Labor
Exceptional Employment Lawyer
Its never a pleasant situation if you need an employment lawyer but if you need one, Jonathan is your man. I have worked with him in two instances. He is very realistic and upfront about a case, which makes the process very efficient and once he is on-board with your case, he is the ferocious advocat...
Posted by anonymous | April 15, 2019 | Hired Attorney | Lawsuits & Disputes
excellent job
Jonathan was the consummate professional. He grasped the intricacies of my situation rapidly and his decades of experience were invaluable. I would absolutely recommend him to anyone that finds themselves in the middle of a dispute. I am very appreciative of his efforts & talent.
Posted by Piotr | March 26, 2019 | Hired Attorney | Employment & Labor
Fast and efficient
Jonathan helped me settle with my previous employer. He was fast, direct and efficient. From what I saw his experience in my field of work allowed him to settle my case as smoothly as possible. His compensation structure was also something that helped me to go into the negotiation process. I have al...
Posted by anonymous | March 23, 2019 | Hired Attorney | Employment & Labor
James
Jonathan got me a great result! While he understood how angry I was with my former employer, he remained focused on the facts, the law, and achieving the outcome that was best for me and my family.
Posted by anonymous | March 13, 2019 | Hired Attorney | Employment & Labor
Got Me a Great Outcome!
I hired Jonathan to help with a case against my employer. I was very distressed and emotional about my situation, but Jonathan made it clear that the facts were on my side and he was there to help me. I believe his reputation forced my employer to take me and my situation more seriously. He ended up ...
"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