Firm Profile

At the Law Offices of Mark Dean, Managing Attorney Mark Dean, talks to his clients and potential clients as soon as possible, usually on the initial call to the office.  He is happy to meet with potential clients at any one of the 6 Metro Area (MO-IL) offices or travel to injured or disabled clients' home or hospital.  At the Law Offices of Mark Dean, Mark Dean will handle all vital aspects of your case from start to finish.  As a member of the 1988 US Olympic Team in Swimming, he understands intimately the benefits of hard work and works tirelessly for his clients.  Every client has Mr. Dean’s personal attention and all calls are returned by him within 24 hours at the latest.

mark Dean

Managing Attorney Mark Dean oversees a competent staff and ensures all legal work is done to the highest professional standards.

Mark Dean's unique and distinguished career, starting in law school where he was Managing Editor of St. Louis University's major Law Review, gives Mr. Dean the insight, knowledge, and wisdom to represent the differing needs of his clients to suit their needs and get the best results.


  • St. Louis University School of Law, Cum Laude, Managing Editor of Law Review, graduate in 1995
  • UCLA, undergraduate degrees in Political Science and History in 1991

Mark Dean’s Employment Prior to Opening The Law Offices of Mark Dean

  • 1995-1997   Assistant Missouri Attorney General
  • 1997-1999   Law Clerk for Judges of St. Louis County
  • 2000-2002   St. Louis University NCAA Compliance Officer
  • 2002-2004   Defense Counsel in Medical Malpractice cases
  • 2004-2008   Insurance Company Defense Counsel in Personal Injury Cases



  • All Missouri State Courts (since 1995)
  • Federal Eastern District of Missouri


  • All Illinois Trial Courts (since 1995)
  • 7th Circuit Court of Appeals

Managing Attorney Mark Dean personally meets with each client or potential client as soon as possible, often within 24 hours of a request to see him.

Home, Hospital, Evening, or Weekend Appointments are available.

Personal injury cases are handled on a contingent fee basis, we only get paid upon a successful conclusion.




12747 Olive Blvd, Ste. 300
St. Louis, MO 63141


You have legal rights.

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in these fields to even the playing field against
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314-623-9126   |   800-431-3212


The Law Offices of Mark Dean is a Personal Injury Law Firm and Workers Compensation Law Firm based in the St. Louis, Missouri area and provides legal services in personal injury and workers compensation. The Law Office of Mark Dean represents and counsels clients in the entire State of Missouri including St. Louis City and the counties of St. Louis, Jefferson, and St. Charles, as well as in surrounding cities that include Wildwood, Ballwin, Kirkwood, Webster Groves, Affton, Arnold, Manchester, Concord, Crestwood, Town and Country, Richmond Heights, Murphy, Sunset Hills, Park Hills, Eureka, Brentwood, Sappington, Shrewsbury, Valley Park, De Soto, Glendale, Rock Hill, High Ridge, Frontenac, Green Park, Byrnes Mill, Marlborough, Winchester, Hillsboro, Oakland, Lakeshire, Allenton, Dittmer, Ellisville, House Springs, Twin Oaks, Wilber Park, and other areas. Managing Attorney Mark Dean also is licensed in the state of Illinois and provides Illinois Personal Injury legal services to clients in the entire State of Illinois, including Edwardsville, Belleville, Collinsville, Madison County, St. Clair County, Springfield, Peoria, Chicago, and Cook County.