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At The Hammer Law Firm, LLC, we place just as much emphasis on guiding our clients safely through their personal turbulence and legal journeys as we do on obtaining the best possible resolutions. By providing each client we represent with the compassion, respect, and commitment they deserve, we have been able to consistently alleviate concerns that arise and help them understand that bold advocates and passionate legal minds are always nearby. From close communication to individualized counsel to genuine care, we provide unmatched personal service.

Having committed to this client-centric approach since we first established our firm, we have been fortunate to satisfy our clients in profound and life-changing ways. Our St. Louis criminal defense lawyers strive to provide the most comprehensive and highest quality support possible, and we believe our positive client testimonials can attest to this fact.

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  • The Hammer Law Firm, LLC
    We are happy that we chose The Hammer Law Firm
    Unfortunately, my family was in need of a criminal defense attorney. FORTUNATELY, we chose The Hammer Law Firm! Our situation was handled ethically, honestly and professionally. Mr. Hammer was available to us throughout the case and answered promptly when we had questions or concerns. Mr. Hammer walked us through what would be happening and what to expect as the impending outcome approached. We are happy that we chose The Hammer Law Firm, Thank you!

    Anonymous

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  • The Hammer Law Firm, LLC
    Unbelievable
    Pulled over due to an out of state plate our world was turned upside down in a non home state... facing felony’s and possible prison ... from first contact in the middle of the night to the end, Mr Hammer and Michelle were there to ease the scare.. From a felony to a simple misdemeanor fine ... it was a true miracle and if wyou think there is no hope then this is the firm to contact.. words can not express the gratitude ... they deserve more than a review.. please contact them for they are worth every cent - they saved our reputation .. we will always have a special spot in our hearts

    R.T.

    Colorado, CO

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  • The Hammer Law Firm, LLC
    Great job, Nicole!
    We hired Hammer Law Firm after my daughter's public defender was unwilling to work with her and us, and after we spent months going to court and getting put off. Nicole did a great job on her behalf and was able to resolve her case with a misdemeanor and fine. I loved working with Nicole, as she listened to all of our concerns and took them into account to get my daughter the best possible deal. I would definitely recommend the Hammer Law Firm. Thank you, Nicole!

    CM

    Dixon, MO

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  • The Hammer Law Firm, LLC
    PHENOMENAL EXPERIENCE!!
    We contacted Mark Hammer for help with our son. Mark was truly amazing! He worked hard for our son, was always a text or phone call away, and we could not have asked (or predicted) a better outcome! Afterward, he made a lengthy appointment my son and us to not only explain the outcome and sequence of events, but also to gave our son a very sincere and personal talk about his future, which may have changed our son’s path, confidence, and motivation. None of us left that meeting without a stunned sense of unreality and tears of joy and relief. Mark is 100% attorney and other 50% personal counselor. He showed absolute commitment and compassion to my son, his circumstances, us as parents, and even our daughter through a trickle down effect. I cannot express how wonderful Mark is and how grateful we are for him. Absolutely in awe of him and can’t recommend him highly enough! Just WOW!

    D.C.

    Ballwin, MO

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  • The Hammer Law Firm, LLC
    He is a gentleman, exudes confidence and relieves stress with his truth.
    I would like to state first, that I believe life is basically good.However,there are times when hope and desperation become the only back-up plans to avail of themselves in difficult situations when circumstances become impossible to manage and our own understanding fails us. Two years ago my family was in turmoil, our relationship to one another almost severed, finances were dwindling...the horror of a teenage opiod abuser had befallen our youngest. An incomparable loss was settling into our lives as a young, bright and sensitive child slid into the darkness that is reserved for a heroin addict and their family. After a year of treatment things were only getting worse ( if that were possible )and felony charges for possession and theft began to accumulate, bringing with them an inexplicable helplessness which I had not experienced before or since. The stress was taking an enormous toll on my wife and myself...I cannot imagine what the agony my son was experiencing. After searching online for days, I could not separate one law firm from another, they all professed to be the one to call amid glowing ratings...I had to choose. Enter Mark Hammer and his associates. He is a gentleman, exudes confidence and relieves stress with his truth...and this was all within the first five minutes of our initial consult. After a thorough review, Mark began to address every legal issue confronting our son, he had already done his homework, which began to bring sanity back into our family as we sat there. At that time our son was facing years in prison, he is now recovering, on probation and living in a residence...drug free for five months. My family is healing, my son is healing. It was not easy but there was direction then and now. These were times which defined who I am today, my wife prays (that) Mark continues to help those who find themselves in circumstances like ours every night ; I admit, I sometimes chime in.

    Ken

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  • The Hammer Law Firm, LLC
    Mark Hammer is a gentleman, exudes confidence and relieves stress with his truth

    I would like to state first, that I believe life is basically good. However,there are times when hope and desperation become the only back-up plans to avail of themselves in difficult situations when circumstances become impossible to manage and our own understanding fails us. Two years ago my family was in turmoil, our relationship to one another almost severed, finances were dwindling...the horror of a teenageopiod abuser had befallen our youngest. An incomparable loss was settling into our lives as a young, bright and sensitive child slid into the darkness that is reserved for a heroin addict and their family. After a year of treatment things were only getting worse ( if that were possible )and felony charges for possession and theft began to accumulate, bringing with them an inexplicable helplessness which I had not experienced before or since. The stress was taking an enormous toll on my wife and myself...I cannot imagine what the agony my son was experiencing. After searching online for days, I could not separate one law firm from another, they all professed to be the one to call amid glowing ratings...I had to choose. Enter Mark Hammer and his associates. He is a gentleman, exudes confidence and relieves stress with his truth...and this was all within the first five minutes of our initial consult. After a thorough review, Mark began to address every legal issue confronting our son, he had already done his homework, which began to bring sanity back into our family as we sat there. At that time our son was facing years in prison, he is now recovering, on probation and living in a residence...drug free for five months. My family is healing, my son is healing. It was not easy but there was direction then and now. These were times which defined who I am today, my wife prays (that) Mark continues to help those who find themselves in circumstances like ours every night ; I admit, I sometimes chime in.”

    Anonymous

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  • The Hammer Law Firm, LLC
    Mark Hammer is a decisive, direct, and conscientious attorney. I would definitely recommend him to others.

    Mark Hammer is a decisive, direct, and conscientious attorney. I would definitely recommend him to others. He defended me with zeal and thoroughness. As soon as we entered the courthouse, I observed that he went out of his way to interact with everyone he came into contact with. This attentiveness towards other people gives him the unique ability to look into the perspectives of all involved on both sides of a case and defend his clients to the utmost. If you find yourselves in the stressful situation of needing a criminal defense attorney, do not hesitate to contact Mark Hammer.

    Anonymous

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  • The Hammer Law Firm, LLC
    PLEASE READ!!!
    THANK GOD FOR MARK HAMMER! I cannot begin to explain in words how thankful I am that I contacted the Hammer Law Firm when I found myself facing criminal legal charges. These are the important things about my experience that I will pass on: 1) I was treated with complete respect and never once felt any judgment from Mr. Hammer or his staff. I felt like he cared for me and my wife far beyond his fiduciary duty as my legal counsel. 2) I believe that Mr. Hammer's previous experience as a prosecuting attorney was instrumental in using strategies to ultimately arrive at a very desirable outcome. 3) The cost of my 3 year case was, in my opinion, extremely reasonable. 4) MOST IMPORTANT - There came times over this 3 year process where I had actually given up... especially towards the end. I had resigned to an accepting a plea that I was completely unhappy with simply out of fear of what the alternative could be. Even though I had given up, Mark did not. He kept fighting until, right before setting a trial date, the DA accepted the best case plea that we were hoping for from the very beginning. I shudder to think of what mine and my family's life could be like right now if I had called a different number 3 years ago, and me and my family will always be grateful beyond words for the role that Mark Hammer and The Hammer Law Firm played in our lives.

    Anonymous

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  • The Hammer Law Firm, LLC
    Mark and Nicole are the best at getting to the truth of the matter and dedicated to your clients
    I was just so over joyed after the trial. You and Nicole are the best at getting to the truth of the matter and dedicated to your clients. In the Harris familys' book you are number one and I would highly recommend anyone needing an attorney to contact the HAMMER LAW FIRM.

    Vicki H.

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  • The Hammer Law Firm, LLC
    Mark and Nicole are the best law firm partners ever.
    Mark and Nicole are the best law firm partners ever. They handled two cases for my daughter which got her out of some serious trouble and they are handling a case for me personally which I know will have the same positive results . They are professional, courteous, and respectful to both the courts and to their clients. This team of professionals are not in business just for the money, they are truly out to help their clients.

    C.E

    MO

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  • The Hammer Law Firm, LLC
    You don't know how much of a blessing you are to us
    Thank you so much Nicole. You don't know how much of a blessing you are to us. I have faith and believe everything that's happening is for a reason. I know everything will be fine and I believe you are going to do everything you can and I'm very grateful for it.

    C.G

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  • The Hammer Law Firm, LLC
    I could not have imagined getting through this difficult and uncertain time without the help of the Hammer Law Firm.
    I could not have imagined getting through this difficult and uncertain time without the help of the Hammer Law Firm. If I did not know Mark Hammer was the lawyer I was needing when he picked-up the phone at 4:00 am and answered my questions, I did know for sure when he called me the next day to check-up on me and to see how I was doing. That is the kind of personal attention I received from Mark throughout the entire process. Not only did he provide support during the legal issues, he also provided support in many other areas to make sure that I ended up in a better place. And I appreciate all the work that Nicole did with the prosecution to get to the outcome we did. I absolutely recommend Mark and Nicole to anyone who is needing more than a lawyer, but people who do genuinely care about you and who want to get the best possible outcome to get you through this difficult time.

    E.M

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  • The Hammer Law Firm, LLC
    I just truly appreciate everything that you and Mark do for me and my family.
    Nicole, I just wanted to thank you for everything that you have done for my daughter. I just truly appreciate everything that you and Mark do for me and my family. God bless you both.

    C.E

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  • The Hammer Law Firm, LLC
    Help and support through every step of the process...
    Growing up often has painful mistakes, as my son can attest to! Mark and Nicole were both sympathetic and supportive as they guided us through the judicial process to not only lower my son's initial charge but to get the entire episode expunged from his record so he will not be jeopardized from pursuing his future. They were always available for a phone call or email and answered all our questions without making us feel troublesome or ignorant.
    While I hope to not have to go through anything like this again, Mark and Nicole and the Hammer law Firm would be my first call for help!

    D.S.

    Alton, IL

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  • The Hammer Law Firm, LLC
    Nicole you are nicest lawyer a person could hire.
    You are the best.You brought me and family through some difficult time's.I really appreciate what all you done for us.And i will never forget you.Hammer Law Firm Thank You.Especially Thanks too Nicole.

    Jerome C.

    Florissant, MO

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  • The Hammer Law Firm, LLC
    I have never met such dedicated attorneys that work so hard for the truth to come out at the trial.
    I just wanted to thank you again for your compassion, kindness, and support given to my family throughout this ordeal. I have never met such dedicated attorneys that work so hard for the truth to come out at the trial. I thank the Hammer Law Firm for not only giving my son his life back, but his family as well. I know that God was with us all and that He sent two angels to our rescue.

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  • The Hammer Law Firm, LLC
    I could call anytime, day or night, and you were there, even when times was bad for you.
    I feel that you were not just our attorneys, but a friend that stood beside us through it all. I could call anytime, day or night, and you were there, even when times was bad for you. I knew the first time I spoke to you, late at night, you were the attorney that I would choose. After we spoke there was a calmness that came over me. I just knew that you would fight to the end. The compassion in your voice exceeded you. VH

    VH

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  • The Hammer Law Firm, LLC
    Thank you for fighting for me and for being so kind!
    I can’t thank you enough for representing me. I don’t know how you did what you did. I just know you’re a fantastic attorney! You didn’t just help me, you helped my family too. Thank you for fighting for me and for being so kind!

    S.R.

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  • The Hammer Law Firm, LLC
    I can't thank you enough!
    My testimonial is in praise of Mark Hammer. Since the very first contact, Mark was not only professional, prompt and understanding, but his personal attention to my case was outstanding. In a time of great fear and uncertainly, Mark was not only a calming, but vigilant entity. He spent time to carefully go over all the scenarios of my defense, worked diligently with the prosecution for a mutually beneficial outcome, and communicated in a timely and expert fashion. I am convinced without Mark in my corner, the outcome of my experience would have been much worse. His devotion to my case and personal attentiveness to my family was exemplary. I fully recommend Mark, and his team, and am forever in his debt.

    CP

    Smithville, MO

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  • The Hammer Law Firm, LLC
    You are great at your job!
    Nicole, you are such a genuinely good person. I remember my first day in your office like it was yesterday. I was a mess and you were so good and nice to me. You made me feel better EVERY TIME I talked to you. Thanks again. You are great at your job!

    S.R.

    St. Louis, MO

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  • The Hammer Law Firm, LLC
    I will never be able to thank you enough
    I will never be able to thank you enough for your help. I was scared to death, but I felt so much better knowing that I had you guys on my side.

    S.R.

    St. Louis, MO

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  • The Hammer Law Firm, LLC
    Nicole, I want you to know that I appreciate everything that you and Mark did for my son
    Nicole, I want you to know that I appreciate everything that you and Mark did for my son…I hope to never need your services again, but if I or anyone I know needs legal assistance in St. Louis, I will gladly send them your way. Thanks again

    C.F.

    St. Louis, MO

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  • The Hammer Law Firm, LLC
    Not only did you guys get those things expunged for me, but you also may have found me a new career.
    I hope I'm not jumping the gun yet, but I wanted to say thank you so very much for thinking of me when you heard someone was looking for prior military people to work with. I submitted my application and resume last Friday and he said he would talk to the boss personally and put his name out there for me. I have you guys to thank for all of this, and I can't say thank you enough! Not only did you guys get those things expunged for me, but you also may have found me a new career.

    AO

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  • The Hammer Law Firm, LLC
    I just really want to thank you, Nicole.
    I just really want to thank you, Nicole. You always make me feel so much better, you really do. There is just something special about the way you talk to me. I can tell you are going to do your hardest and I thank you!

    S.R.

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  • The Hammer Law Firm, LLC
    Thanks again for everything. You truly are a blessing.
    Thanks again for everything. You truly are a blessing. I pray God will open up more opportunities and your firm expands nationwide. You are the best!!!!

    MA

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  • The Hammer Law Firm, LLC
    It makes it much less stressful having a lawyer like yourself that is greatly talented at what they do!
    Thank you for all you've done. It makes it much less stressful having a lawyer like yourself that is greatly talented at what they do! I'm truly appreciative to have you supporting me through this whole process!

    JW

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  • The Hammer Law Firm, LLC
    I'd recommend you to anyone.
    Dear Nicole: Thanks for all your hard work. You and your husband did exactly what you said you would. That's rare anymore. I'd recommend you to anyone with the same problem I had.

    ED

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  • The Hammer Law Firm, LLC
    Thanks again for all your help, that was the best present I got!
    Merry Christmas…Thanks again for all your help, that was the best present I got!

    JM

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  • The Hammer Law Firm, LLC
    I just wanted to say thank you for all your hard work.
    I just wanted to say thank you for all your hard work on making sure I was able to spend the holidays at home with family!

    PM

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  • The Hammer Law Firm, LLC
    You were awesome and did everything you agreed to in your contract and even more.
    I want to thank you again for your legal advice and services you provided to my nephew…and our family. On a special note, I thought very admirable of you for the actions you took to ensure he got released from jail…and for speaking with his supervisor to save his job. And for all the running around you did even during the threat of an ice storm, was remarkable. You were awesome and did everything you agreed to in your contract and even more. I have shared your willingness to go the extra mile with some of our closest friends and co-workers.

    RG

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  • The Hammer Law Firm, LLC
    What can I say, the Hammer Law Firm saved my career! As soon as I spoke to Mr. Hammer I felt so much better.
    What can I say, the Hammer Law Firm saved my career! As soon as I spoke to Mr. Hammer I felt so much better. He assured me that he and Ms. Chiravollatti would get a favorable outcome in my case and that's exactly what they did! They are by far the most responsive, honest and talented attorneys I have ever worked with and I have recommended them to two of my close friends in the past month! HIRE THIS LAW FIRM TODAY!!! SERIOUSLY.

    DA

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  • The Hammer Law Firm, LLC
    Mark has years of experience working the system and he worked my case aggressively. Not only did Mark keep me out of jail, but also kept my record clean as all charges were dropped!
    I had four drug related felony charges, and after talking with a few lawyers to weigh my options, was prepared for the probability of spending time behind bars. Then I found The Hammer Law firm. Mark has years of experience working the system and he worked my case aggressively. Not only did Mark keep me out of jail, but also kept my record clean as all charges were dropped! I didn't know it then, but the day I got arrested ended up being the best day of my life as I'm now clean and sober. Thank you Mark for all the work you did for me and my family! For anyone else who may need a lawyer, talk to this guy! You'll be glad you did!

    JM

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  • The Hammer Law Firm, LLC
    Nicole was very professional and a delight to work with. She was very consistent with staying in touch and being available.
    Nicole was very professional and a delight to work with. She was very consistent with staying in touch and being available. Any questions I had she made sure to find the answers. . . . And she made sure I understood them. Thank you for your hard work!

    Withheld

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  • The Hammer Law Firm, LLC
    Finding Mr. Mark Hammer to help my son with his legal problems was a Godsend.
    Finding Mr. Mark Hammer to help my son with his legal problems was a Godsend. Mr. Hammer was knowledgeable, polite, truthful and professional at all times. He cared about my son as a person and not just as another young man gone wrong. I credit Mr. Hammer with helping my son get back on the right track. I would highly recommend him.

    Withheld

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  • The Hammer Law Firm, LLC
    The Hammer Law Firm listened to my needs, understood my expectations, and promptly worked on my behalf to resolve an issue to my utmost satisfaction.
    My past interactions with law firms has been frustrating, but the Hammer Law Firm listened to my needs, understood my expectations, and promptly worked on my behalf to resolve an issue to my utmost satisfaction. I couldn't believe how responsive they were to my phone calls and emails.

    Withheld

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  • The Hammer Law Firm, LLC
    I can't say enough about how great Mark Hammer was when he handled my case!
    I can't say enough about how great Mark Hammer was when he handled my case! He represented me back in 2009 and everything went very smoothly. I was impressed at how efficiently and effectively he handled my matter. I have sent numerous new clients to Mr. Hammer since he helped me including my brother-in-law. I would definitely recommend him for any legal matter and I will continue to use him for myself and my family. Thanks for all your help Mark Hammer.

    Withheld

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  • The Hammer Law Firm, LLC
    I required legal help after a horrific accident and my family called The Hammer Law Firm. Mark and Nicole were both professional and caring.
    I required legal help after a horrific accident and my family called The Hammer Law Firm. Mark and Nicole were both professional and caring. During the initial legal proceedings Mark was upfront about the options that were proposed as settlement and helped me think through the ramifications of the options. Nicole later followed through with timely subsequent filings that provided me an advantage as my legal matters progressed. I felt I received good legal representation and will continue to utilize Mark and Nicole for future actions.

    MM

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  • The Hammer Law Firm, LLC
    Their dedication and fight for my case was very evident. I would definitely recommend The Hammer Law Firm.
    I recently used The Hammer Law Firm and wanted to share my experience. The entire staff was very professional and helpful. Communication was great, always quick to respond to phone calls and emails. Their dedication and fight for my case was very evident. I would definitely recommend The Hammer Law Firm.

    AM

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Recognized in the industry

  • National Association of Criminal Defense Lawyers
    National Association of Criminal Defense Lawyers
  • American Bar Association
    American Bar Association
  • The Bar Association of Metropolitan St. Louis
    The Bar Association of Metropolitan St. Louis
  • Missouri Association of Criminal Defense Lawyers
    Missouri Association of Criminal Defense Lawyers
  • Super Lawyers
    Super Lawyers

Client Testimonials

  • "I could not have imagined getting through this difficult and uncertain time without the help of the Hammer Law Firm."
    - E.M
  • "You don't know how much of a blessing you are to us"
    - C.G
  • "Mark and Nicole are the best law firm partners ever."
    - C.E
  • "Mark and Nicole are the best at getting to the truth of the matter and dedicated to your clients"
    - Vicki H.
  • "Mark Hammer is a decisive, direct, and conscientious attorney. I would definitely recommend him to others."
    - Anonymous
  • "Mark Hammer is a gentleman, exudes confidence and relieves stress with his truth"
    - Anonymous

Why Trust Our St. Lous Criminal Defense LAw Firm?

  1. More than 30 years of criminal law experience.
  2. Former prosecutors who know how the
    "other side" operates.
  3. Accessibility and availability – clients can
    always reach our attorneys.
  4. Personalized, one-on-one attention.
  5. Tough negotiators and proven trial lawyers.
Get Immediate Help

Our attorneys are dedicated to working
directly with all our clients.

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