It’s been more than a year since Chattanooga Housing Authority officials announced that the site would be vacated and sold. But Robert Dunlap and his mother haven’t moved yet because they were unable to find a landlord willing to accept the government-issued rental vouchers distributed to many of those who have been displaced from Tubman and other CHA housing sites. Robert Dunlap looked for at least three months before finding a landlord willing to accept his payment for a two-bedroom apartment. The 2012 voucher payment is $628 for a two-bedroom apartment. CHA officials said this month that 125 people have rental vouchers but have found no one willing to accept them. Housing officials are concerned because they plan to open the waiting list and issue 200 more vouchers in the first or second week of September.