David R. Cohn, Esq

David R. Cohn is one of Southern California’s premier attorneys when it comes to providing a vigorous legal defense to persons facing criminal charges. As a partner at Wallin & Klarich, Mr. Cohn uses his comprehensive knowledge of the law to aggressively fight for our clients’ legal rights.

Since 1995, Mr. Cohn has been successfully defending our clients against charges of violent crimes, federal offenses, serious felonies and all criminal matters. He has been there for thousands of our clients in their time of legal need.

David Cohn Can Make the Difference

“I have had success against government prosecutors at county, state and federal levels because I provide each and every one of my clients with judicious legal representation,” Mr. Cohn said. “Whether it be during the investigation and negotiation phase, trial or sentencing stage, I pride myself in providing constant communication to all my clients at all times.”

Our clients choose Mr. Cohn to represent them because of his unparalleled experience with serious criminal matters. From their initial conversation with Mr. Cohn, our clients immediately feel comfortable with his abilities to serve as a strong advocate for them. He brings a diligent approach and attention to detail to every one of his cases.

“David Cohn is one of the most highly respected litigators in the state of California,” Wallin & Klarich Attorney David Wohl said. “He takes very difficult criminal cases where the stakes are very high and achieves extraordinary outcomes. If you are charged with a serious felony, David Cohn is the attorney you want fighting for you.”

Call David Cohn at Wallin & Klarich

Mr. Cohn has a history of significant success. His victories have helped teachers accused of sex offenses against students and persons accused of murder. He is ready to work tirelessly for you so that you can hopefully avoid the consequences of a serious crime.

To speak with Mr. Cohn or any of the skilled attorneys at Wallin & Klarich, call us today at (888) 749-7428. We will be there when you call.


Title: Partner

Serving Clients: Throughout All of Southern California

Practice Areas: Criminal Defense, Federal Criminal Defense, DUI, Juvenile Criminal Defense, Sex Crimes, Felonies, Drug Crimes


  • California State University of Fullerton (CSUF), B.A. Business Administration/Finance
  • Southwestern University of Law, Los Angeles, Juris Doctor

Member of:

  • California State Bar
  • American Bar Association
  • Orange County Bar Association
  • South Orange County Bar Association

Admitted to Practice in the Following Courts:

  • All California State Courts
  • U.S. Court of Appeal, 9th Circuit
  • U.S. District Court, Central District
  • U.S. District Court, Southern District



“I was charged with a DUI and, due to a prior DUI conviction, I faced the harsh reality of serving significant time in county jail. Without a doubt, I was worried and scared. I hired the law firm of Wallin & Klarich and Attorney David R. Cohn quickly got to work in resolving my case with the best possible result. I was facing 60 days or more in county jail and Mr. Cohn was able to get my jail sentence reduced. He was able to put off and delay my date to serve my jail time. I am self-employed and it’s financially important to my business that I maintain my responsibilities and satisfy my contractual obligations to my clients. I was facing serious financial hardship and things were finally to turn around. Mr. Cohn understood that it was extremely important that I satisfy my business clients and complete my contractual obligations prior to serving my jail sentence. I am grateful for Mr. Cohn’s hard work and dedication to my case and he is an amazing attorney and person.”

-R. A.

“My name is Antonia, sister of Jesus, whom you recently represented. When my brother’s case first started, it hurt the soul of everyone that was part of that family: his wife, his children, his siblings, etc. I know because I was in communication with them. On behalf of everyone, I thank God in the first place and I thank you – thank you for accepting this case, thank you for the time you took during the process, thank your parents who raised you (they must be very proud of you), thank the people who make up your family, thank you for all the late nights you spent studying to be an attorney.

In Spanish the word attorney means abogado. The word abogado has great value and means to intercede. In this case, God chose you to intercede for this family because as I mentioned earlier, it was not just my brother that was affected, it was the entire family. I want to find words to express our gratitude and the only word that comes to mind is THANK YOU. We will always be grateful for agreeing to represent my brother and for the happy resolution of the case. I unequivocally believe that my brother is innocent. If I were not convinced of that, I would not be able to speak in such a manner. Even though I had faith in God that this would end well, all the time that passed was very difficult for all of us. I know that at the end of the tunnel there is always light. I also know that God always listens and this is testimony of that. Besides thanking you, I want to tell you that I will have you in my prayers every day. Not just you but your family as well. I do not know anybody, not even you, but God knows everyone very well. May God bless you always and in every moment of your life. Remember, there is always light at the end of the tunnel. This applies for everyone when we find ourselves in a situation where the solution does not lie in our hands.”

-Antonia E.

“I was charged and arrested for first degree murder in conjunction with a brawl outside a rodeo in Riverside County. The police arrested and charged me and a friend for knifing a guy to death. I maintained my innocence and, even though I was present that evening, I never held a knife and never got near the victim. The police stated that witnesses had placed the knife in my hand at some point, and that the security guards said we were both involved with the victim.  I was facing LIFE in prison for something I didn’t do.

I was referred to Wallin & Klarich and one of the partners, David R. Cohn, was assigned to my case. Wallin & Klarich aggressively prepared my defense and believed in my defense and more importantly, my innocence. After months of investigation and preparation, my attorney took the case to preliminary hearing along with the co-defendant. While my attorney advised me that 95% of homicide cases get bound from prelim to trial, my attorney assured me that he would do everything he could to get me the charges dropped and to get me out of custody….and he did just that. At preliminary hearing, the DA presented the witnesses and my attorney exhaustively cross-examined each and every one of them, poking holes in their testimony and the D.A.’s case against me.

After four days of prelim testimony and argument, Attorney David R. Cohn convinced the judge that there was insufficient evidence for the charge against me. Even though the burden of proof for the D.A. was so much lower at prelim than trial, the judge dismissed the charges against me, and I was released from custody! I would recommend Wallin & Klarich to anyone charged with any crime. Their effortless representation on my case gave me my life back!

On a side note, the co-defendant, who also hired a private attorney, was bound over to trial and found guilty.”


“I was charged with first degree murder for the shooting death of an elderly woman in San Bernardino County. I was arrested and charged with numerous felonies and was facing LIFE in prison. While I wasn’t innocent of the shooting, I was not guilty of murder as I shot the gun in defense of others and the stray bullet ended up killing the victim. I had never been in trouble before and was devastated by my actions. I was prepared to take responsibility but not for murder. After having a public defender for months and feeling like I was going nowhere but prison for the rest of my life, my family was referred to Wallin & Klarich, who assigned partner David R. Cohn to my case. Wallin & Klarich believed in me and my defense of others. Even though Wallin & Klarich explained that my defense of others was “imperfect” within the law, they believed I was being overcharged, and that they would attempt to get the charges reduced to a voluntary manslaughter with use a weapon, which would avoid LIFE imprisonment and give me a determinate prison sentence so I can have my life back eventually. In the end, that is exactly what happened. I am currently serving my sentence and in a few years will have my life back. Every day I thank God for Wallin & Klarich and ask for his forgiveness for the death of the victim.”


“I was arrested and charged with first degree murder for the killing of a man and attempted murder of another in a connection with a gang-related shooting in a neighborhood in San Bernardino County. Even though the evidence was stacked against me and I was facing two life terms, my family took the chance on hiring a private attorney. We were referred to Wallin & Klarich and David R. Cohn was assigned to my case. After lengthy discussions and analysis of the evidence and law, my attorney advised me that the best we could hope for would be to get the charges reduced to voluntary manslaughter, which would prevent any life terms and give me a chance at life again after serving a determinate sentence. I agreed and was very happy to hear that I had a chance to redeem myself after serving my punishment as the other inmates and the public defender didn’t give me any hope at all of seeing the light of day. After several months of aggressive negotiations, Wallin & Klarich was able to attain a plea bargain to voluntary manslaughter and a determinate sentence! I was able to avoid LIFE in prison and look forward to my rehabilitation and eventual release at a relatively young age still. Thank you Wallin & Klarich for believing in me.”


“I was verbally assaulted with a friend outside a taco shop in Los Angeles County. In fear of our safety, I went to my car and pulled out a gun I use for security at work and shot one of the assailants. I was arrested and charged with attempted murder and was facing life in prison. I hired Wallin & Klarich to represent me. David R. Cohn, one of the  Wallin & Klarich partners, worked aggressively to build my defense. I knew I should have just left the scene when I got in my car to get my gun as I had time to do so, but I wasn’t of my right mind at the time and just responded to the verbal assault in the manner I did. I was willing to accept some responsibility but not life in prison! In the end, Wallin & Klarich attained an offer to plead to assault with a weapon and be placed on probation! I snapped that up right away and have been home enjoying my wife and children ever since. Wallin & Klarich gave me my family back. Thank you.”


“I was charged with felony acts of lewd and lascivious acts with a minor under 14 years of age. The alleged victim in this case was a female neighbor. I am a married father of two minor children and I strongly denied these allegations as I had done nothing wrong. I hired the law firm of Wallin & Klarich and my attorney, David Cohn, quickly got to work in helping me through this difficult time. Not only did Mr. Cohn strongly believe in my case, but Mr. Cohn worked tirelessly in conducting an adequate pretrial investigation into the allegations and into the background of the alleged victim. Although I was facing eight years in prison if I was found guilty, I strongly desired to go to trial as I wanted to prove my innocence. At trial, Mr. Cohn countered the prosecution’s case and provided evidence to show that it was impossible for these allegations to even occur. In the end, I was found not guilty on all counts. I owe my life to God for providing me with a great attorney – Mr. Cohn. His dedication and his vigorous defense of my case made the difference.”


“I was charged with felony sexual battery. I was facing serious prison time, life-long sex offender registration, and the loss of my career. With so much on the line, I put my entire future in the hands of Wallin & Klarich. From day one, Attorney David Cohn fought long and tirelessly on my behalf in order to prove my innocence. I was treated with respect and I felt like I was a priority at their office. Mr. Cohn and the people at Wallin & Klarich spent countless hours working on my case to prove my innocence, and Mr. Cohn did a fantastic job presenting my case to the jury. In the end, when the jury came back with not guilty verdicts, I knew that Wallin & Klarich’s efforts in proving my innocence prevailed. I would highly recommend Wallin & Klarich to anybody looking for a top notch criminal defense firm.”


“I was charged with three felony counts of aggravated assault with a deadly weapon and great bodily injury – all serious and violent strikes. I was facing the possibility of many years in prison. David Cohn believed in my innocence and fought hard for my freedom. After fully discussing the factual details and legal defenses of my case with me and my family, he advised that we should take my case to preliminary hearing and, ultimately trial instead of settling for a plea bargain that would land me in jail with a criminal record. He was very confident that we had some powerful legal and factual issues to support our case.

My attorney was fully prepared for the preliminary hearing but advised me that the prosecution’s burden of proof at the prelim was very slight and therefore it would be a very difficult task to get the charges dismissed at prelim. After the cross examination of five witnesses and argument to the court, the judge dismissed all charges against me. I am very grateful and thankful to Wallin & Klarich for their hard work and dedication to my case. Thank you Wallin & Klarich.”