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 1 - 3 of 3 reviews | Business
Posted by anonymous | March 09, 2023 | Hired Attorney | Business
Results You Can Trust
Jonathan negotiated a sophisticated deal for me and he was a true professional who fought for me. I would strongly recommend him to anyone seeking an advocate who will fight for them and justice. Total pro.
Posted by anonymous | May 06, 2021 | Hired Attorney | Business
CEO
Jon Sack has provided absolutely terrific service and counsel to me and my firm over the past 2 years. He is a true professional who operates aggressively, efficiently and with the highest integrity to achieve desired goals. I had heard of Jon's terrific reputation after working for many years in the...
Posted by anonymous | December 15, 2020 | Hired Attorney | Business
President
Jonathan has been a tremendous help in navigating the legalities of my startup business. His no nonsense approach was instrumental in achieving the necessary contractual framework for my business. Jonathan is extremely efficient and helped achieve these goals while keeping billable hours to a minim...
"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