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 6 - 10 of 34 reviews | General Knowledge
Posted by anonymous | July 05, 2023 | Employment & Labor
Aggressive Workers' Rights Lawyer
Employers who break the law do anything and everything in their power to delay and avoid paying for their actions. Jonathan keenly understands what it takes to bring a hostile defendant to the table to bring recompense for aggrieved employees.
Posted by anonymous | April 28, 2023 | Hired Attorney
My Trusted Advisor
An incredible mind and top subject matter expert. A quick read and study. Focused on doing the right thing for his clients at all times, regardless of time of day. Built up trust in an instant, was my guiding light at my darkest moment and kept me grounded and focused. No question was a hard ques...
Posted by anonymous | February 01, 2023 | Lawsuits & Disputes
A lawyer you can trust!
I feel blessed that was referred to Jonathan. He is not only an unbelievable lawyer, but simply just cares and is passionate about helping people. I am so glad I had Jonathan as my advocate. He knows what is right and no one knows how to handle big corporations better than him to get you what you des...
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 | July 24, 2022 | Hired Attorney | Employment & Labor
The right man for the job
I had a bonus dispute with my financial services employer and reached out to a number of attorneys to assess my options. Nearly every one of them told me the same thing - that Wall Street bonuses are purely discretionary and that I had little to no recourse. They told me that going up against a well-...
"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