The Lackner Group, Inc.
Software DevelopmentPennsylvania, United States2-10 Employees
The Lackner Group, Inc. is a software development firm based in Carnegie, Pennsylvania, founded in 1985. Its principal offering is the 6-in-1 Estate Administration System, a comprehensive tool used by law firms, accounting firms, and banks to manage estate and trust administration across the United States. The system was developed by Vincent F. Lackner Jr., a practicing lawyer with expertise in tax and probate law, who envisioned it to meet the ABA's Computer Probate Systems Committee’s recommendations from 1983. Since its market introduction in the mid-1980s, 6-in-1 has expanded beyond the initial goals to provide automated support for federal and state tax returns and court accountings as part of estate administration workflows. In May 2025, coverage noted that the Lackner Group addresses uncertainty surrounding federal estate tax policy and guides families through related planning considerations. The company operates as a small, specialized software developer focused on estate administration within the broader software industry.