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 - 5 of 5 reviews | Divorce & Separation
Posted by anonymous | February 22, 2024 | Divorce & Separation
Very Helpful!
Jonathan was very helpful in providing his services while I navigated my separation agreement after being impacted by a mass layoff. He answered all of my questions and was very quick to respond. I would recommend him.
Posted by anonymous | September 22, 2022 | Divorce & Separation
Knowledgeable and Responsive
A contact and previous client referred me to Jonathan Sack. I had a complex separation agreement. Jonathan reviewed the agreement in detail, advised me on my options, and took the time to walk me through everything and answered all my questions. Prior to connecting with Jonathan, the ambiguity and co...
Posted by anonymous | August 19, 2021 | Divorce & Separation
Real estate investment professional
Jonathan consulted on a potential litigation and helped me negotiate a separation agreement before launching a case. He was direct and gave candid feedback that was clearly based on significant experience.
Posted by anonymous | January 06, 2020 | Hired Attorney | Divorce & Separation
Fantastic!
Jonathan was referred to me by a friend for my separation agreement. He was tremendously energetic and always timely with his responses. What I really appreciated was his combination of being both aggressive and always being there for me. Jonathan allowed me to get a great separation agreement while...
Posted by Heather | May 12, 2018 | Divorce & Separation
Very constructive, focused and helpful consultation
In 10 minutes, Jonathan was able to answer legal questions that had been nagging me for weeks about terms of my separation agreement. He understands the legal and human aspects of employment law and is very practical about nuances in agreements. If I had a bigger issue, I would absolutely go back t...
"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