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Stuart L. O'Brien

Probate Attorney at Clayton, MO

5.0   8 reviews
Virtual consultation available
Virtual consultation available
  • State Years
    Missouri - MO 29 years
    Illinois - IL 29 years
  • Licensed for 29 years
    State MO
    Acquired 1994
    Good Standing, Active No misconduct found
  • Licensed for 29 years
    State IL
    Acquired 1995
    Administrative - Not Authorized to Practice No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Stuart

Learn Stuart’s areas of practice.

Practice areas
  1. Probate
    This office routienely handles all matters which fall under the jurisdiction of the probate court. Such matters include certain estate planning matters such as wills and trusts, as well as traditional probate matters such as decedents estates and guardianships for minors and incapacitated adults.

  2. Criminal defense
    This office has extensive experience in criminal matters ranging from your most basic traffic ticket (yes, still technically criminal) to mid level felonies

  3. DUI and DWI
    DWI is usually the most serious criminal ofense committed by "everyday people". That said, it is a serious matter requiring specialized knowledge and constant vigilance to remain current in this ever changing body of laws and rulings.

  4. Estate planning
    These days, estate planning is less about tax planning and more about the seamless transfer of assets and ease of management. Many options are available to fit your unique situatuion.

  5. Wills and living wills



Top Contributor 2013
Top Contributor


Stuart L. O'Brien


5.0 / 5.0
  8 customer reviews
5 Star
4 Star
3 Star
2 Star
1 Star
Posted by Shawn | March 6, 2020
This review is from a potential client who consulted with this attorney.
| Consulted Attorney
Very Helpful
He is an intelligent lawyer. I talked with several other lawyers that are the same field who didn't know about a specific law that I heard about that would help me. They all said they never heard of that statute. Then I finally found stuart and stuart confirmed it with me. That the statute I heard about was correct. And the other lawyers should have known about that statute because they are the same field as Stuart. And on top of that after I talked with Stuart. I eventually got even more curious and found the specific statute I was looking for online. On some website where you can look up all the Missouri laws. And also double confirmed this statute. So I can definitely tell that Stuart did his studying in law school. He is also patient in explaining things and explains things crystal clear and a very nice guy. I highly recommend you to consult with this attorney.
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Posted by Lori | July 30, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Excellent Lawyer - Competent - Fair - Thoughtful
Stuart is a highly intelligent and very competent attorney. He explained everything in detail, so I understood exactly what needed to be done and when. He is generous with his time and his communication skills are excellent! He connects with you in a manner that is comprehensible and digestible. Mr. O’Brien is not only passionate about the law, but he is equally as concerned about his clients’ understanding of their unique, complex situation. I was impressed with his organization, his ability to simplify what was very chaotic and frightening. I am grateful for his ability to help me stay calm and focused. I learned a valuable mantra from Stuart, “It is not What If, but What Is”. I refer back to this often. I believe Mr. O’Brien to be candid, thoughtful, thorough, and fair. I would highly recommend Mr. Stuart.
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Posted by anonymous | December 21, 2017
This review is from a person who hired this attorney.
| Hired Attorney
Great Attorney!
Stuart is a highly intelligent and very competent attorney. My father passed away without a will, and I had no idea what to do. Stuart helped me get through the probate process. He explained everything in detail so I could understand exactly what needed to be done. I highly recommend him.
Posted by Terri | November 16, 2017
This review is from a person who hired this attorney.
| Hired Attorney
I originally came in contact with Stuart to help put together my father's will. A few months later my dad passed and Stuart helped me through the estate process. He was a blessing in that he knew all the things that needed to be done and explained them so clearly. I went through loosing my husband during this time and Stuart was very compassionate and patient with me. He is a very knowledgeable, helpful and friendly attorney. I would highly recommend him.
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Posted by Mark | March 8, 2017
This review is from a potential client who consulted with this attorney.
| Consulted Attorney
Excellent Legal Representation
I have known Stuart for over ten years. During this time, I have worked with him on a combination of personal and professional legal issues. Stuart is incredibly adept at taking very complex legal principles and explaining them in a manner that just about anybody can understand. I am also impressed at how practical the advice is that he gives his clients. Clients can actually use the advice he gives to make their personal situation better. He is a great team player, willing to involve other professionals, including other attorneys, when he deems it best for the client. Stuart is very patient, a very good listener, and a very straightforward communicator. I can't imagine what else anyone could ask of their counselor. I would wholeheartedly recommend Stuart to anybody seeking exceptional legal representation. Whether needing a simple will to be drafted, or developing and implementing a strategy for avoiding probate, or dealing with probate issues after the fact, Stuart O'Brien is the advocate you and your family need.
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Posted by Mike | February 16, 2017
This review is from a person who hired this attorney.
| Hired Attorney
Thanks for the piece of mind you provided. It was a smooth and comfortable process. I have and will continue to send people to Stuart. He makes me look good.
Posted by Crystal | October 12, 2015
This review is from a person who hired this attorney.
| Hired Attorney
Fabulous and Funny Attorney
My family and I hired Stuart O'Brien as our probate attorney for my sister's estate in Missouri. Because our family lived out of state we dealt with all of the correspondence either on the phone or e-mail. I was the Personal Representative and had never been through this process before. Stuart took the time and patiently explained the process as each step came up. Every question I had was answered throughly until I understood. Stuart was excellent at returning phone calls, and often I was the one returning his phone calls checking to make sure I had completed the task before the deadlines came up. I learned so much and enjoyed every conversation we had. He has an incredible sense of humor and knows when to implement it even in the trying times we shared together. He went the extra mile and would drive through my sister's neighborhood and let me know if her house was ok since it sat vacant for awhile. The entire process took two and a half years to complete and I enjoyed many conversations regarding my sister's probate peppered with what was going on in each of our communities. We have since finished up the probate and I can't believe how much I have learned and how much better off I am now that I know how to set things up for my family in case of the inevitable. Better to be prepared than unaware. Thank you, Stuart, for educating me on all the legal aspects of planning for the future and all of the laughs from your hilarious one liners!!!
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Posted by Pamela | October 21, 2013
Amazing Attorney
I have dealt with many attorneys before and I really can't say enough nice things about Stuart O'Brien. I can honestly say that Stuart O'Brien is one of the best. I found him on line through this site and immediately was impressed with his straightforwardness and honesty. He answered so many questions that had previously gone unanswered (for months) by the attorney my brother obtained. I had spoken with another attorney in St. Louis about my situation who immediately wanted money upfront before answering any questions but he did inform me it would be a long battle with this attorney my brother obtained. On the other hand, Mr. O'Brien had been so informative and had never even mentioned money. We began working together in January 2013, the other attorney resigned and I was finally made Administrator of the Estate late August 2013; a year after my uncle's passing. It had been somewhat of a battle with my brother but Mr. O'Brien was always professional and diplomatic and he made it happen that I be made Administrator of the Estate and unsupervised by the court. Things have progressed better than I ever anticipated. Mr. O'Brien is very knowledgable, well organized, detail oriented and has been available to answer every question I might possibly have. He is always assessable by phone or email. He has a great network of people and he has proven to be a great detective tracking down heirs. In less than 2 months Mr. O'Brien has tackled every issue in and out state for me. It's not often I have the pleasure to do business with such an upstanding professional such as Stuart O'Brien. His quick wit and sense of humor are an added bonus. I would call this attorney no matter what the legal issue knowing his advice whatever it may be, would be the best.
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  • Hourly Rates $ 200-275 per hour
  • Retainer Sometimes
Payment methods
Cash, Check, Credit Card


AVVO RATING 6.6 (Good)

Work Experience

  • Private Practitioner
  • Law Offices of Stuart L. O'Brien
  • 1994 - Present


  • Loyola University New Orleans College of Law
  • JD - Juris Doctor
  • 1994
  • St. Louis University
  • BS - Bachelor of Science
  • 1991


  • Missouri Municipal and Associate Circuit Judges Association
  • 2009 - Present
  • St. Louis County Bar Association
  • N/A

Languages Spoken

  • English

Attorney endorsements

Received (1)
Given (2)
Endorse Stuart
DUI and DWI Attorney | Sep 21
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Clayton Probate Lawyer Stuart L. O'Brien
Stuart L. O'Brien
Probate Attorney
Clayton, MO
Licensed for 29 years
Virtual consultation available