City of Greenwood Village v. for the Proposed City of Centennial

We transferred this appeal from the court of appeals to determine whether the proposed City of Centennial (Centennial) may proceed with its incorporation election or whether the City of Greenwood Village (Greenwood Village) may hold its annexation elections first. On the basis of the 1965 Municipal Annexation Act (1965 Act) and a 1999 amendment thereto (1999 Act), the District Court for Arapahoe County (district court) ruled that the Centennial incorporation election would occur first. It held, nevertheless, that the 1999 Act unconstitutionally impaired a pre-annexation agreement between…