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 26 - 30 of 109 reviews | Employment & Labor
Posted by Jeff | December 14, 2021 | Hired Attorney | Employment & Labor
Couldn't have asked for better counsel . . .
There is no one who I would want more in my corner than Jonathan Sack. He was always there for me (especially during some very trying times) and was an incredible voice of reason in helping me successfully bring to closure an unfortunate dispute with my former employer and investment firm. His tea...
Posted by anonymous | September 27, 2021 | Hired Attorney | Employment & Labor
The Finest Employment Lawyer In New York
Jon is a lawyer's lawyer. Between his insatiable desire to assist his clients in achieving their goals (which he did without fail), his compassion, empathy, and inimitable wit, Jon has clearly entrenched himself as a beacon of the employment bar. What Jon lacks in White Shoe pedigree, he easily mak...
Posted by anonymous | September 22, 2021 | Employment & Labor
Incredibly informative and a pleasure to speak to
I consulted Mr. Sack about a termination issue after returning from maternity leave. Mr. Sack responded to my request to speak within minutes and when we spoke, he listened, was compassionate, and gave me incredible advice on what to ask for and how to ask. Thanks to our conversation, I ended up wa...
Posted by anonymous | September 20, 2021 | Hired Attorney | Employment & Labor
Consistently helpful and very practical
Jonathan helped me last year when I was leaving a job of long standing. He gave practical advice that helped me improve the agreement, and was consistently supportive and available. His charges are very fair. Even better, he's helped me with some further questions, over a year later. I would go back ...
Posted by anonymous | September 16, 2021 | Hired Attorney | Employment & Labor
Amazed by his ability to help
I am impressed by Jonathan’s professionalism and business strategy used on my case. He is also very responsive which eliminated my anxiety during the whole process. With his extensive experiences in employment law, Jonathan provides an advantage to help the people who have been treated unfairly by th...
"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."
No Endorsement Data Available Yet
This attorney hasn't created any attorney endorsements recently on Avvo.
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