Avvo Review Score

4.8 /5.0

177 Client Reviews

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Showing 1 - 5 of 10 reviews | Staff & Support

Posted by anonymous | March 22, 2026 | Hired Attorney | Employment & Labor

Highly recommend: Effective and Highly Efficient

My lawyer was effective and highly efficient throughout the process. One of my biggest fears was having to regularly see the abuser and even a more hostile environment while the case was handled. Prior to Mr Sack’s involvement, individual regularly aggressively screamed at me and intimidated me (6’...4 tall man banging books on the desk while aggressively screaming at me, 5’2 woman, because I enquired about internal opportunities), constant sexist comments on my voice, clothes and personal life, “jokes” about using “mothers room” after returning from maternity leave in front of everyone (toxic trading floor) or email. However, as soon as Mr Sack got involved, the harassment and intimidations almost immediately stopped (that alone was such a relief). Work accommodations were quickly made; I didn’t have to see or hear the individual, except via email and only work-related requests. When it came time to leave, the process was seamless—I left without any awkwardness, confrontation or regret. Most importantly, the matter was resolved with fair compensation. I’m deeply grateful for my lawyer’s professionalism, guidance, and support during such a challenging and hostile situation.

Posted by Andrew | October 30, 2025 | Hired Attorney

We needed help fast and Jonathan got it done.

Jonathan's experience is apparent. He cuts through the noise. He is very well connected. His whole team is engaged. And he gets results.

Posted by anonymous | February 02, 2022 | Hired Attorney | Arbitration

Someone who truly puts his client first

I reached out to Jonathan to help me arbitrate a case against my former employer. From day one Jonathan explained the process and steps involved. I was always consulted and my opinion was taken into account. He diligently prepared the case and fought it. His team was outstanding, taking down a powerf...ul firm with hard work and a very clear and concise case presentation. If you want a lawyer that is smart, knows how to present arguments extremely well, has an amazing track record and most importantly cares about his client, then you need to reach out to Jonathan.

Posted by Jeff | December 14, 2021 | Hired Attorney | Employment & Labor

Couldn't have asked for better counsel . . .

There is no one who I would want more in my corner than Jonathan Sack. He was always there for me (especially during some very trying times) and was an incredible voice of reason in helping me successfully bring to closure an unfortunate dispute with my former employer and investment firm. His tea...m was incredibly responsive, empathetic, professional and really smart. Jonathan's experience in the area of employment litigation and protecting the interests of the underdog is second to none.

Posted by anonymous | May 14, 2021 | Hired Attorney

Best there is

Jonathan really listened to me from Day 1; and he and his team provided amazing guidance throughout my entire process. He was always available, no question of mine was too small, and he gave me so much hope during a very difficult time. His entire team is fantastic and made sure that I was comfortab...le the whole way through. I would recommend Jonathan 100 times over.

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