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 33 reviews | Character & Conduct
Posted by anonymous | November 24, 2017 | Hired Attorney | Lawsuits & Disputes
Effective, competent, a true partner
You don't ever hope to be in a situation where you need Jonathan Sack, but if you ever are, this is the guy you need on your side. I hired Jonathan to deal with a thorny situation where there was significant money for me at risk. Jonathan zeroed in on the crux of the dispute, articulated a strategy, ...
Posted by anonymous | November 02, 2017 | Hired Attorney | Employment & Labor
Smart, to the point, gets it done.
Jonathan was able to cut through a nuanced employment dispute to quickly get to the essence. He was aggressive, yet fair-minded, reasonable, and restrained when leading the negotiation. Before choosing Sack & Sack, I interviewed a number of high-profile attorneys and heard out their proposed stra...
Posted by Liz | October 19, 2017 | Hired Attorney | Discrimination
Amazing Advocate to have on your side
Jonathan is extremely knowledgeable, fierce, straight forward, and compassionate. He is definitely the advocate you need when you are being discriminated by your employer. Jonathan made sure the timing was right before pulling the trigger on my case. He made sure I was emotionally and financially ...
Posted by Darren | October 09, 2017 | Hired Attorney | Employment & Labor
Successful outcome, professional, efficient
My employer did not honor a contract. Jonathan helped me to get the money that I deserved. He and his team bring intensity and get the job done. I recommend Jonathan to those that wish to pursue a FINRA suit.
Posted by anonymous | October 08, 2017 | Hired Attorney | Lawsuits & Disputes
Public Company Director
Jonathan has the experience, toughness and dedication to fight for you. He won't waste your time, he will tell you the truth when it comes to your case, both good and bad. I highly recommend him and his team. I want him on my side in any dispute. He was recommended to me by one of the top corpor...
"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