Unsolicited Proposals for Public-private Partnerships; Authorizes, rather than requires, responsible public entity to publish notice of unsolicited proposal for qualifying project in specified manner & that other proposals for same project will be accepted; authorizes responsible public entity to proceed with unsolicited proposal for qualifying project without public bidding process if responsible public entity holds public meeting that meets certain requirements & holds a subsequent public meeting at which responsible public entity makes certain determination; requires responsible public entity to consider certain factors; requires responsible public entity to publish certain report in Florida Administrative Register for certain period in certain circumstances; revises certain determinations that responsible public entity must make before approving comprehensive agreement.