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John Hartmann, Esq. is a highly experienced criminal justice attorney based in Princeton Junction, New Jersey. With a strong track record of successfully defending clients facing a variety of criminal charges, John is dedicated to providing top-notch legal representation and ensuring that his clients receive fair treatment under the law. Specializing in criminal defense, John has a reputation for fighting tirelessly for his clients’ rights and achieving favorable outcomes in even the most challenging cases. Whether you are facing misdemeanor or felony charges, John Hartmann, Esq. is the attorney you can trust to protect your rights and advocate for your best interests. Contact him today for a consultation and see why the second “n” in his name stands for not guilty.

Criminal justice attorney

Taryn O'Sullivan

3/06/2025

John was incredibly professional and personable, explaining each step of the process of my case clearly. His empathetic approach, calm demeanor and attention to detail provided me with confidence throughout the process.
Thank you for all your help John!

Christine Hubacek

9/25/2024

He was a very knowledgeable and proficient Lawyer and I am very happy with the outcome of my case. Highly recommended.

Amanda Evans

8/24/2024

I speak very highly of John. We are all human and get into binds sometimes (unfortunately). John puts my mind at ease and I can count on him to take care of me 100% as if I was his only client. That’s what everyone wants.. we are people not numbers. He’s the best !