Criminal Defense & DUI Lawyer
in Rancho Cucamonga, California


If you’ve been accused of or charged with a crime, you may be facing extremely harsh sentences, fines, and other penalties that you will have to carry with you for the rest of your life. With over 20-years of experience, Greg Kassel will help you build a strong case so your rights and freedom are protected. Reach out today to schedule a free consultation.

Greg Kassel

Attorney at Law

Born and raised in San Bernardino, Greg is a proud member of his community and its surrounding areas to this day and has helped his neighbors fight criminal and DUI charges since 1991. 

He gladly followed in his father’s footsteps — who was a well-known attorney in the area, having started his practice in 1957. Greg continues to honor his father’s legacy each day he comes to work and provides high-quality legal services to those in need of his knowledge, skills, and experience.

What to Do After You’ve Been Arrested

to Protect Your Freedom & Independence

Contact Us Immediately

As soon as you have the chance after your arrest, call our office so we can begin building your defense case immediately. The less time there is between your arrest and our arrival, the better.

Only Speak To
Your Lawyer

While you’re waiting for us to arrive, exercise your right to remain silent. Don't say a word — even to those you trust. You may not think what you say is damaging, but it’s better to be on the safe side.

Relax & Trust
Your Lawyer

Tensions can run high, especially when your hands are cuffed and you are surrounded by police officers. We are here to ensure your rights are protected, so rely on us to strive to make things better.

Practice Areas

Dedicated Advocates for Your Rights

Are You or a Loved One In Police Custody?


Client Testimonials


Being accused of or charged with a crime can be overwhelming, especially if you have Rancho Cucamonga police officers in your face trying to get you to talk. We will be your voice from the moment we arrive to the end of your case, striving for a positive solution such as a dropped charge or reduced sentence.

We are dedicated to helping those that have their driving privileges on the line. If you have been charged with a DUI, are caught with drugs in your car, we’ll be there to make sure each officer acted lawfully and reasonably during your stop. If you may have a shot at a dismissed case.

Throughout Rancho Cucamonga, California and the surrounding areas, there have been many cases that come across our desks at Kassel and Kassel involving people that were driving under the influence. As a result, we have experience with DUI cases like yours that give us an idea of what works when it comes to creating a defense strategy for your case.

You don’t have to take on this challenge alone. Contact us to schedule a free consultation today so we can get to work on protecting your freedom as soon as possible. We are dedicated criminal defense lawyers who want to protect those in our community.