McMahan Law Firm: Van D. McMahan, Attorney at Law 109 West Court Avenue Selmer, Tn 38375 Mr. McMahan is the general sessions and juvenile court judge in McNairy County, TN. Mr. McMahan also practices law in in the following areas of law: Social Security, Personal Injury, Worker’s Compensation, Product Liability, Wrongful Death, Bankruptcy, Adoptions, Car Accidents, and other Civil Litigation. Mr. McMahan is licensed to practice in Tennessee, Mississippi, and Alabama.