They are required to provide security and maintain the property.
The city turned down the offer because it did not want to pay for maintaining the property.
Unfortunately, he passed away and his wife decided she didn't want to maintain the whole 2,000-acre property.
"This county can no long afford to maintain old properties on its open space," she said.
The revenue from the office space and the restaurants will be used to maintain the property.
Local residents say the group failed to adequately maintain the property.
The county will be responsible for maintaining the property as a public garden and resource center.
The Trustees acquired the home site in 2002 and have been maintaining the property ever since.
In 1961, two foundations were established to maintain the historic property.
The school district will use the site for environmental programs and will maintain the property.