11A4 - RESOLUTION APPROVING OF AND AUTHORIZING, SUBJECT TO THE APPROVAL OF THE UNITED STATES FEDERAL TRANSIT ADMINISTRATION, THE COUNTY MAYOR OR COUNTY MAYOR'S DESIGNEE TO EXECUTE THE FIFTH AMENDMENT TO THE GROUND LEASE BETWEEN MIAMI-DADE COUNTY AND OKEECHOBEE LEASE HOLDINGS, LLC, A FLORIDA LIMITED LIABILITY COMPANY AND A SUBSIDIARY OF CORNERSTONE GROUP PARTNERS, LLC, FOR THE DEVELOPMENT OF THE METRO GRANDE APARTMENTS FOR THE PURPOSE OF EXTENDING THE TERM OF THE GROUND LEASE FROM 75 YEARS TO 99 YEARS TO FACILITATE THE DEVELOPER'S ABILITY TO QUALIFY FOR AN AD VALOREM TAX EXEMPTION UNDER FLORIDA LAW AND TO TIMELY CLOSE ON THE FINANCING OF THE PHASE OF THE PROJECT KNOWN AS METRO GRANDE II; AND AUTHORIZING THE COUNTY MAYOR OR COUNTY MAYOR'S DESIGNEE TO EXERCISE ALL PROVISIONS CONTAINED IN THE GROUND LEASE