Palm Beach County; Provides that municipal service taxing unit whose primary purpose is to provide fire protection, rescue, & emergency medical services to residents in unincorporated areas of county remains service provider for specified length of time to real properties that is annexed into municipality; provides that geographical boundaries of municipal service taxing unit shall contract following annexation; prohibits Palm Beach County from levying ad valorem taxes through municipal service taxing unit on annexed real properties following annexation; requires annexing municipality to pay county annual service price for specified length of time; provides that county remains authority having jurisdiction & may continue to collect certain fees from annexed real properties; provides for transfer of services to annexing municipality & cessation of county jurisdiction to collect fees; requires pre-annexation good faith discussions & negotiations between annexing municipality & county regarding expenditure of assets for capital & operational purposes in areas proposed to be annexed; authorizes annexing municipality & county to enter into agreement on length of time for provision of county services, retention of county jurisdiction regarding fees, & annual service price payments.