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 - 15 of 177 reviews
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 | January 31, 2024 | Employment & Labor
RECOMMEND!!
Jonathan came to me through a referral and I am so thankful for it. He is responsive, knowledgeable and works to protect those being taken advantage of by large corporate firms. He provided me guidance and sound advice through an intimidating and hostile departure.
Posted by anonymous | January 30, 2024 | Employment & Labor
Sound Advice
Jonathan provided sound advice around my recent separation from a company, he gave me time to think things over and come to the best conclusion myself without any pressure. Would definitely recommend
Posted by Steven | August 18, 2023 | Employment & Labor
Excellent counsel
Jonathan is excellent. He is incredibly knowledgeable, experienced, responsive, and tenacious. He is the only counsel I would consider recommending for employment related matters.
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.
"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