Judge Lockert-Mash is a life-long resident of the Twenty-Third Judicial District. She was raised in Cheatham County and she is married to Kenny Mash and they maintain a home in Dover, Tennessee. They enjoy family time with daughter MacKenzie and her husband Jeff Miller and granddaughter Ruby.

Judge Lockert-Mash is a Christian and a member of the Dover Church of Christ. She is a conservative Republican.

Judge Lockert-Mash has devoted herself to public service for over thirty years; first as a child abuse investigator, secondly as a state probation officer, then twenty-four years as an Assistant District Attorney and finally, as an elected Circuit Court Judge for the past eight years.

Judge Lockert-Mash was a founding member of the Twenty-Third Judicial Drug Court and has been the Presiding Circuit Court Judge over this program for the past eight years. She is presently working with law enforcement and General Sessions Judges to implement a Recovery Court program for the General Sessions courts as well as providing a program in the local jails. This program has helped many individuals become and remain sober and become law-abiding citizens. It promotes responsibility and accountability and teaches participants to become productive citizens in the community. It takes two to two and half years for a participant to graduate. Upon graduating, Judge Lockert-Mash presents them with a Certificate of Graduation and a Bible.  

Circuit Court is a court of general jurisdiction. In the Twenty-Third Judicial District, there are three Circuit Court Judges. Judge Lockert-Mash and the two other Circuit Court Judges preside over criminal, civil, chancery and probate cases as well as presiding over appeals from General Sessions, Juvenile and Municipal Courts in the counties of Cheatham, Dickson, Houston, Humphreys and Stewart.

Judge Lockert-Mash has practiced in all the courts in the Twenty-Third Judicial District and has tried jury trials as well as presided over jury trials in all of the counties in the district. She has extensive experience and understanding of trial procedure in that she has tried over 100 jury trials and has presided over numerous trials ranging from DUI to Death Penalty cases.  In her role of Assistant District Attorney in Dickson County, Judge Lockert-Mash served as the Drug Task Force Prosecutor as well as the Chairwoman of the Twenty-Third Judicial District Drug Task Force. She has extensive experience in preparing search warrants for drug seizures and prosecuting major drug dealers. She has the proven trial and work experience necessary to protect the rights of all citizens who come before the Court. Judge Lockert-Mash has protected the rights of thousands of victims and citizens during her thirty plus years in the legal profession.