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 66 - 70 of 103 reviews | Advocacy
Posted by anonymous | July 11, 2019 | Hired Attorney | Contracts & Agreements
Senior Level Ecommerce Executive
Jonathan extricated me from a burdensome non-compete that my former employer was standing firm to hold me to. I am a single parent with two children in college, this situation was threatening my ability to support my family, not only did Jonathan not charge me a fee, he managed to negotiate a GREATLY...
Posted by anonymous | June 28, 2019 | Hired Attorney | Employment & Labor
Highly intelligent, gifted, first-rate, consummate, brilliant....
These are some of the words that come to mind when describing Jonathan Sack. You do not need to search for anyone else, and I can not stress that enough. Personally, I feel we live in a great world. Unfortunately, it is not without bad people and bad employers, but if there were no bad people or b...
Posted by anonymous | June 04, 2019 | Employment & Labor
A True Professional
Jonathan was exceedingly generous with his time and offered helpful and sound advice. He has a thorough understanding of all elements of employment law and is an expert in this space. His consultation was thoughtful and he took the time to help me see all aspects of my particular situation. He is ext...
Posted by anonymous | May 04, 2019 | Hired Attorney | Employment & Labor
Epitome of Excellence
Jonathan was thorough, honest and as helpful as could be. He walked me through an important employment law matter that I was dealing with and took charge immediately. Made me feel comfortable knowing that I had him on my side. He is an expert in the world of employment law.
Posted by anonymous | May 04, 2019 | Hired Attorney | Employment & Labor
Exceptional legal advocacy
Jonathan has successfully defended my interests and provided me outstanding guidance on a number of employment matters. His 30+ years in the industry, direct approach and professional demeanor make him an excellent advocate for anyone seeking legal assistance related to employee issues. I unreservedl...
"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