

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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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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First of all, it was hard to find a lawyer that works with grandparents rights. Jack did a great job and we get to see our grand-daughter for the first time in a year. We are very thankful to him.- Mr. Callaway
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They are very very professional and very quick to respond so you're not left in the dark about anything to do with your case! I was very happy with the results of my case and my experience with them. I highly recommend if you're looking for a divorce lawyer or any kind of family law, Jack cavanaugh and his associates are great! I have to give a special shout out to Eka because she really made my life a heck of a lot easier and was always so quick to get back to me and let me know what is going on! I would give her 10 Stars if I could!- Courtney T.
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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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Jack has been a lawyer for a long time. He values his clients and sees them as people with individual circumstances, and not just dollar bills like other attorneys. Anyone that knows anything about the law knows it’s about making and keeping good rapport with all parties involved. And for a defense attorney, being familiar with the judge to the prosecutor and being on a friendly basis with them is exceptionally important. And Jack knows everyone! He should as he’s been doing this for probably over 40 years. He’s not only a great attorney but I consider him a friend. Don’t make the mistake of choosing an unknown rookie attorney who may be a couple bucks cheaper. Choose Jack!- Paige
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Jack and Eka were very professional in handling my case. I would definitely recommend them to others and use them again. Jack has 50 years experience!- Michele
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I worked with Jack and Eka recently and must say they exceeded my expectations. Great communication and compassion for what you’re dealing with. I wouldn’t hesitate to go back to them for any of my legal matters.- Donald Salisbury
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He has worked with me even though we are in different states to ensure I am kept abreast of what is going on.- Former Client

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.
