Lauren Heinen was born and raised in Hathaway, Louisiana. She graduated from Welsh High School, Louisiana State University, and Louisiana State Paul M. Hebert Law Center.  

 Following her graduation from law school, Lauren began working with the law firm of Marcantel, Marcantel, Wall, & Pfeiffer. Her practice focused on tort law, family law, property law, and succession law. In 2018, Lauren opened her own law practice with her business partner, Alexander J. Guinn, and continued to work mainly in the area of family law, property law, and criminal law.  

 On March 26, 2022, Lauren was elected District Attorney. She is one of only 5 female District Attorneys in the State of Louisiana.  Lauren is a member of the Louisiana State Bar Association and Jefferson Davis Parish Bar Association.