Avvo Review Score

4.8 /5.0

177 Client Reviews

Filter Avvo Reviews (177) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 1 - 5 of 177 reviews

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 anonymous | February 13, 2026 | Hired Attorney | Lawsuits & Disputes

Jonathan Sack is the “real deal”

Jonathan Sack actually listened to us. He took the time to understand the inequity of our situation. He was the person calling and emailing us in between huge case trials to give us advice. His advice was on point. We had other attorneys shy away from the big bank employee name but Jonathon rose ...to the challenge to do what was right based on principle and ethics. He is sharp and efficient and gets it done without quitting or taking the easy road. When we were in a critical and emotional place, he helped move us toward stability and hope. If you want someone who will stand firm and fight for you, Jonathan Sack is the person you want on your side. We are deeply grateful.

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 | March 19, 2025

Incredibly User Friendly

Jonathan is truly one of the best. When I reached out to him for advice not only did he take the call quickly, but he did also so in a way that was thoughtful and comprehensive. He helped my partner and me think through the specifics of the situation and laid out what he believed to be the best pat...h forward. He's extremely knowledgeable and fair and isn't going to sign up for something where he doesn't think he can bring value. I appreciate that about him and while I hope we never need him again, if an issue were to arise, he is our first call and if I were you, I'm make him my first call.

Posted by Jonathan | March 18, 2025 | Employment & Labor

Excellent experience!

Jonathan recently helped me through an employment contract matter. This was a first time experience for me, and he was extremely friendly, knowledgeable, and provided excellent consultation in an understandable way. The matter was resolved in a timely manner with a very positive outcome, and I woul...d highly recommend!

See All Client Reviews