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 31 - 35 of 177 reviews
Posted by anonymous | July 24, 2022 | Hired Attorney | Employment & Labor
The right man for the job
I had a bonus dispute with my financial services employer and reached out to a number of attorneys to assess my options. Nearly every one of them told me the same thing - that Wall Street bonuses are purely discretionary and that I had little to no recourse. They told me that going up against a well-...
Posted by anonymous | June 06, 2022 | Hired Attorney
Professional as they come
I was referred to Jonathan by a friend and we quickly connected. He worked with me through a difficult situation and helped me get to a resolution quickly. He was extremely thoughtful and worked to get what I wanted accomplished. Would recommend!
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 anonymous | April 27, 2022 | Hired Attorney | Employment & Labor
The man you want on your side
Jonathan is a breath of fresh air in an industry full of lawyers who are slow and uncertain. He helped me navigate a tricky situation with my former employer as well as with my new employer over several months, and provided genuine advice with no strings attached. He's a very busy person and I'm fo...
Posted by anonymous | March 22, 2022 | Hired Attorney | Employment & Labor
kind & responsive
I recently went through a difficult process with my employer that put me in a position where I needed legal representation. Jonathan was suggested to me by a friend who worked with him a few years ago. He was unbelievably helpful and kind throughout the process, taking the time to answer all my quest...
"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