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Mark Hammer

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Mark Hammer Founding Attorney
  • Bio

Dedicated to the Fighting for Your Rights

As a founding lawyer of The Hammer Law Firm, LLC, Mark A. Hammer has built a practice that focuses exclusively on criminal defense and the client. Additionally, he draws from extensive experience and insight gained as a former prosecutor to handle each case as effectively and intelligently as possible. As a result of his talent, experience, and commitment to making a real difference in the lives of clients and their loved ones, Mark has been successful in hundreds of criminal trials at both the state and federal levels.

Mark earned his B.S. and law degree from the University of Iowa, Iowa City before spending over 13 years as an assistant prosecuting attorney in Washington and Minnesota. This experience enabled Mark to effectively gauge the other side’s actions and intentions when representing defendants and provided him with the insight he leverages in each case our firm handles.

A committed member of the community, Mark has dedicated time to pro bono representation and has volunteered for the ALS Association. He has also taught legal classes and seminars on trial advocacy and trial practice in several schools of higher education.

Mark’s extensive experience and genuine demeanor make clients feel confident in choosing The Hammer Law Firm, LLC to help them through difficult times. Be confident in choosing us. Our firm is located in St. Louis, Missouri, and serves clients throughout the metropolitan area and statewide throughout Missouri. The choice of a lawyer is an important decision and should not be based solely on advertisements. This disclosure is required by the rule of the Supreme Court of Missouri.

Litigation Percentage

  • 100% of Practice Devoted to Criminal Defense Litigation

Professional Profiles

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Hear From Our Happy Clients

At The Hammer Law Firm, LLC, your satisfaction is our priority! See for yourself what our clients have to say about working with us.

    "We are happy that 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.

    - Former Client
    "Unbelievable"

    Mr. Hammer and Raj were there to ease the scare. From a felony to a simple misdemeanor fine ... it was a true miracle and if you think there is no hope then this is the firm to contact.

    - R.T.
    "Mark Hammer is a decisive, direct, and conscientious attorney. I would definitely recommend him to others."

    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 sid

    - Former Client