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John B. Cunningham

John B. Cunningham

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Practice Areas

  • Family Law-Divorce, Custody, Legitimation, Child Support
  • Criminal Defense
  • Probate/Estate Planning
  • Personal Injury
  • Commercial


John is a native Georgian and a proud graduate of the University of Georgia. After graduating law school with honors, John started his legal career as an Assistant District Attorney at the Coweta Judicial Circuit District Attorney's Office. Prior to leaving the District Attorney's Office, John was promoted to Senior Assistant District Attorney. John has since served as a Municipal Court Judge and Guardian ad Litem.

While at the District Attorney's office, John gained extensive trial experience as the lead prosecutor in over 2,000 felony criminal cases ranging from DUI and drug trafficking to child molestation, armed robbery, and murder. John had the opportunity to try numerous cases before both judges and juries.

John is also experienced in post-trial, appellate advocacy, having argued cases before the Supreme Court of Georgia and the Court of Appeals of Georgia, resulting in published opinions in both courts.

John primarily practices in the field of Domestic Litigation, which includes divorces, legitimations, guardianships, contempts of court, and adoptions as well as modifications of alimony, child support, and child custody. He also practices heavily in all types of probate and estate litigation, including probating estates, filing petitions for year's support, conservatorships, and guardianships.

John is certified in Standardized Field Sobriety Testing. Further, John has attended courses focused on impaired driving and ways in which drugs and alcohol are absorbed, distributed, metabolized, and eliminated by the body.

In addition to litigation, John handles transactional matters, including the preparation of wills, powers of attorney, advanced health care directives, and contracts such as prenuptial and postnuptial agreements.

John lives in Newnan with his wife and children.


  • Oklahoma City University School of Law, Oklahoma City, Oklahoma
    • J.D. - 2007
    • Honors: cum laude
  • University of Georgia, Athens, Georgia
    • B.A. - 1998

Bar Admission

  • Georgia, 2007
  • Supreme Court of Georgia, 2008
  • Georgia Court of Appeals, 2008

Past Positions

  • Judge, Municipal Court of Woodbury, GA, 2018 to 2022
  • Judge Pro Tem, Municipal Court of Tyrone, GA, 2021 to 2022
  • Rosenzweig, Jones, Horne & Griffis, 2013 to 2017
  • Coweta Judicial Circuit District Attorney’s Office, Assistant District Attorney, 2007 to 2013

Professional Associations

  • Newnan Coweta Historical Society, Board Member, 2018 to 2022
  • Newnan Coweta Historical Society, President, 2021 to 2022
  • Southern Soccer Association (SSA) , Volunteer Soccer Coach
  • Oak Hill Pipes and Drums; Newnan, GA, Bagpiper
  • Newnan Coweta Bar Association , Former President

Current Employment Position

  • Partner
  • Judge, Municipal Court of Franklin, GA 2023-Present