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About Me

Paul J. McMahon created the law firm of McMahon Legal Services, LLC to help people during what can be the most stressful time of their life. His philosophy and belief are that the law and lawyers should be there to help others at their greatest time in need with compassion and understanding. He began his career mastering the criminal aspect of law from both the prosecution side and defense side with his internship at the St. Louis County Prosecutor’s Office and later as an assistant public defender at the Missouri State Public Defender’s Office, and during that time, he handled several thousand criminal law matters from simply pleas to complex felony trials.

Since then, Mr. McMahon has represented hundreds of individuals with a variety of legal needs from the simple traffic ticket to the contested divorce trial. He has successfully tried over a dozen criminal and family law cases involving arsons, assaults, divorces, DWI/DUI, guardianships, landlord/tenant and restraining orders. His wealth of experience has given him the knowledge and understanding that is necessary to fully represent clients to achieve the best results.

Mr. McMahon received his Bachelor of Arts degree in History from University of Missouri-Columbia in 1994. He subsequently worked in retail management for numerous sporting goods stores before entering Thomas Cooley Law School in 2000. He received his Juris Doctorate in May of 2003 and began an internship for the St. Louis County Prosecutor’s Office shortly before graduation.


Photos and Videos

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Practice Areas


  1. Family: 25%
    6 years
  2. DUI & DWI: 20%
    11 years
  3. Criminal Defense: 20%
    11 years, 2 thousand cases
  4. Divorce & Separation: 15%
    6 years
  5. Other: 20%
  6. More 



Free Consultation (30 minutes)

Payment Types:

Cash, Check, Credit Card

Attorney Endorsements

10 total 

  • J Christopher Allen

    I endorse this lawyer. Had the privilege of working with Paul for two years and believe he is an excellent attorney, who is knowledgeable on the law, always on his client's side and determined and able to reach the best possible result for his clients.


    J Allen Child Custody Attorney
    Relationship: Supervised lawyer

  • Carrie Beth Williamson

    I endorse Paul McMahon. Paul is thorough, courteous, and works hard to represent his client's interests.


    Carrie Williamson Family Attorney
    Relationship: Fellow lawyer in community

Contact Info

McMahon Legal Services, LLC.

406 N. Main Street.
P.O. Box 1157
Rolla, MO, 65402


MOGood Standing, Active200401/08/2013

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Award NameGrantorDate Granted
Litigation CertificateThomas M Cooley Law School2003
Work Experience
TitleCompany NameDuration
OwnerMcMahon Legal Services, LLC.2012 - Present
Of CounselCarey, Danis & Lowe2010 - 2011
AttorneyAllen & Rector, P.C.2010 - 2012
Assistant Prosecuting AttorneyCity of Dixon, MO2010 - 2012
AttorneyPrugh Law Office2009 - 2010
AttorneyMissouri State Public Defender's Office2005 - 2009
Legal InternSt. Louis County Prosecuting Attorney's Office2003 - 2003
Association NamePosition NameDuration
American Bar AssociationMember2012 - Present
Rolla Chamber of CommerceMember2012 - Present
Rolla Downtown Business AssociationMember2012 - Present
Pulaski County Bar AssociationMember2009 - 2012
Phelps County Bar AssociationMember2005 - Present
Missouri State Bar AssociationMember2003 - Present
Legal Cases
Case NameOutcome
State v. M.F.Not Guilty.
State v. B.D.Not Guilty.
See all Legal Cases 
School NameMajorDegreeGraduated
Thomas M. Cooley Law SchoolLawJD - Juris Doctor2003
University of Missouri, ColumbiaN/ABA - Bachelor of Arts1994
Speaking Engagements
Conference NameTitleDate
Juvenile Justice ClassJuvenile Law2012