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 34 reviews | General Knowledge
Posted by anonymous | June 03, 2020 | Employment & Labor
Account Manager
I consulted Jonathan Sack about a severance letter I received from my employer, which recently reduced staff. I did not know IF I had a case to negotiate more severance benefits but Jonathan guided me to ask the right questions. Turns out I did not have a case other good performance reviews, which ...
Posted by Trevyn | January 21, 2020 | Lawsuits & Disputes
Incredible Support
Although i was located in a country with 7 hour time difference, and contacted Jonathan just before Christmas, he was extraordinarily efficient and available to me at all times. Even through the holidays, whilst he travelled with his family, we spoke and mailed regularly. His ability to combine empa...
Posted by anonymous | June 17, 2019 | Employment & Labor
anonymous
Jonathan was referred to me by two friends, independently and i see why. He is the epitome of helpful, responsive and efficient. Jonathan was able to guide me on an employment matter in short order, was generous with his time and expertise. After our conversations, i felt confident moving forward wit...
Posted by anonymous | August 30, 2018 | Hired Attorney | Employment & Labor
Immediately (within 10 minutes) fixed a very serious issue for me!
I was put in touch with Jonathan after my previous firm threatened me with legal action regarding a contract policy. Jonathan immediately jumped on the case and had an email prepared within minutes to address the firm's issues. His email was clear, concise, and got the message across. He believed the...
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."
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