AMENDED AND RESTATED LOAN AGREEMENT by and among KBSIII 60 SOUTH SIXTH STREET, LLC, KBSIII PRESTON COMMONS, LLC, KBSIII STERLING PLAZA, LLC, KBSIII TOWERS AT EMERYVILLE, LLC, KBSIII TEN ALMADEN, LLC, and KBSIII LEGACY TOWN CENTER, LLC, each a Delaware...