Lillard turned Tabor into an all-boys' school and cancelled plans to make the Academy the town of Marion's school and vowed to keep it a privately endowed and operated institution. In the 1930s, Lillard orchestrated a trade with the town of Marion. The original Academy buildings were deeded to the town (now the Elizabeth Taber Library and Marion Town Hall) and were traded for the current waterfront location in order to allow the academy to expand and grow. He acquired the surrounding cottages and plots of land in order to secure the academy's future expansion' the area had increased ten-fold by the end of his tenure in 1942. Among other contributions to the school was his design of the current seal of the school, which shows a full-rigged ship and the motto "All-a-taut-o". He selected the seal as an image to students to "sail towards broader horizons" and the motto because of its nautical meaning as the state of a vessel when everything is shipshape and accounted for.