

St. Louis Criminal Defense Lawyer
Over Five Decades of Defending Those Accused of Burglary, Theft, Sex Crimes, and More!
Facing criminal charges can be frightening, overwhelming, and confusing. You may be unsure of what to do or what to say, but everything you do from this point on can directly impact your criminal case and future. In these situations, you must exercise your right to legal counsel. So call an experienced criminal defense attorney in St. Louis, MO, at Cavanagh & Associates to protect your constitutional legal rights!
When your freedom is on the line, trust your criminal case to attorney Jack Cavanagh. He is a former prosecutor and seasoned trial lawyer with over half a century of legal experience. At Cavanagh & Associates, our criminal defense attorneys represent clients facing charges in St. Louis, Chesterfield, St. Charles, and the surrounding areas in MO. In addition, our attorneys take on cases involving DUI/DWI arrests, sex crime charges, domestic violence allegations, drug crimes, theft charges, and other misdemeanor and felony criminal offenses.


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Jack did a great job representing me while dealing with a high conflict ex. He was able to tell me what to expect and what was worth fighting for and did it in a way that made it easy to accept.
- Dustin G. -
Attorney Cavanagh is a fantastic lawyer. His experience is unparalleled. He does an excellent job of keeping his clients informed, and he is an outstanding advocate in court. He is kind and patient, and genuinely cares about his clients. I am proud to know him, and grateful for his help!- Rick V.
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Mr. Jack Cavanagh was my attorney getting me removed from an child birth certificate that wasn’t my child. He made the process very easy and timely manner the communication was very good and I was beyond satisfy with the outcome and service Thank you Mr.Jack and Ms.English- Demetric L.
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I would highly recommend setting up a consultation with Jack regarding your legal matters as he certainly goes above and beyond for his clients.- Matt
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Jack resolved a case from 1500 miles away in a timely manner. Professional throughout the entire process, took the time to understand my needs as a client and fulfilled them without ever wavering in his commitment or price. Would recommend.- Patrick S.
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Mr. Cavanagh was very patient in dealing with all of the difficulties of my case. He was pleasant to work with to get the child support and custody worked out in a way that was fair. He showed real concern for the welfare of my son. He was professional in guiding me with regards to counseling and getting my sons voice heard throughout the case as well. Lastly he was thorough in that he went through the original divorce decree and made sure I received what I should have gotten during the divorce. I would recommend Mr. Cavanagh as well as use him again in the future.- Former Client
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Jack is great lawyer with lots of experience. I’m glad we I hired him to represent me. We won a battle like David against Goliath.- Rolles G.
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Jack took over my divorce case and made a seemingly endless divorce process (nearly 4 years with mediation, continuances and a former atty.) come to a quick and agreeable settlement. Jack is an effective and seasoned attorney that made easy work of the negotiations. He is respectful and concerned for his clients. His associates were friendly and helpful, ensuring that all paperwork was completed in a timely and accurate fashion. I highly recommend him if you are going through a difficult divorce.- Carol

What Our Work Means
Our Values
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We have a genuine desire to see our clients succeed.
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Attorney Cavanagh handles our clients' legal matters personally.
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We achieve positive case outcomes through thorough preparation.
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Attorney Cavanagh is a former prosecutor turned legal advocate.
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We offer confidential consultations to every client.
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Attorney Cavanagh has over 50 years of legal experience.
