Scenario

Harrison conveyed land in Savannah, Georgia to the Trustees of the Savannah-Chatham County Public School System (SCCPSS) by warranty deed "to be used for school purposes only; otherwise to revert to Grantor." The school district built as school on the land. Harrison also conveyed the adjoining farmland and his reversionary interest in the school to the Jacksons, who in turn conveyed their interest to the Martins. Both the school and farmland adjoin the Martin's land. More than 20 years after SCCPSS build the school, the school district discontinued holding regular classes at the school. The school building was used as a warehouse and stored school equipment, supplied, unused desks and similar items. Martin filed a lawsuit to gain title of the school property.

It's cool to see the application of the doctrine of equitable estoppel in the property scenario. However, I'm curious about how the specifics of this doctrine apply in the context of Martin and SCCPSS's dispute. Could you elaborate further on how the principle of equitable estoppel functions in this scenario and provide additional insight into its potential implications for the case?