SOUTH CAROLINA PLANTATIONS: 4_0_122_1randall_hill_photo04

Friendfield Plantation custodian Vanessa Robinson cleans a study at Friendfield Plantation in Georgetown, South Carolina, February 17, 2012. She has worked at the plantation for the last 9 years. The plantation has ties to Michelle Obama's family in South Carolina. According to plantation staff, Obama's great-great-grandfather, Jim Robinson, was a slave at Friendfield Plantation. In the South Carolina Lowcountry, more than a half-dozen antebellum plantations, which don't change hands often, are for sale. Picture taken February 17, 2012. REUTERS/Randall Hill (UNITED STATES)

Friendfield Plantation custodian Vanessa Robinson cleans a study at Friendfield Plantation in Georgetown, South Carolina, February 17, 2012. She has worked at the plantation for the last 9 years. The plantation has ties to Michelle Obama's family in South Carolina. According to plantation staff, Obama's great-great-grandfather, Jim Robinson, was a slave at Friendfield Plantation. In the South Carolina Lowcountry, more than a half-dozen antebellum plantations, which don't change hands often, are for sale. Picture taken February 17, 2012. REUTERS/Randall Hill (UNITED STATES)