The Hall County Board of Education failed to disclose an apparent conflict of interest for one of its members last month when it approved the purchase of land for the World Language Academy campus on Winder Highway in Flowery Branch, and agreed on a price about three times the county’s assessed value on the property. School officials have said the land deal was simply a matter of remedying a property line dispute. “We did a survey and found out we don’t even own the land some of our driveways are on, and really have no access to our own playgrounds,” Superintendent Will Schofield said in December.