In my small town we have a family of philanthropists that gives away parcels of land in town to promote homebuilding in the area. There has always been a verbal agreement that if the land wasn’t used for a home that it was to be returned. Recently, one of the recipients decided not to build a home on her parcel. Instead, in violation of the agreement, she has decided to put the land up for sale. She also erected a billboard on the land to promote her sale of cemetery monuments. She has even placed some sample monuments on the property. Is there any legal way to compel her to honor this verbal contract and either return the land or use it for what the original owners intended?