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 11 - 13 of 13 reviews | Discrimination
Posted by anonymous | July 06, 2018 | Hired Attorney | Discrimination
Successful discrimination claim against large financial services firm
Represented me against my former employer (a large bank) in a retaliation and discrimination claim. Quietly resolved the matter by negotiating a very generous severance package representing multiple years of my annual compensation. Very knowledgeable and capable attorney. Developed and executed a re...
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 anonymous | October 05, 2017 | Hired Attorney | Discrimination
A true advocate for the abused employee
While sometimes a bit rough and overly aggressive, Jonathan has a proven track record of advocating on behalf of those who have either been victims of discrimination or have had their employers withhold payments to them. In these types of cases the law is clear, but the little guy or gal is at a big ...
"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