5, 187 (1990) ("Since its enactment, we have interpreted the diversity statute to require `complete diversity' of citizenship." (citing Strawbridge V. Curtiss, 7 U.S. (3 Cranch) 267, 267-68 (1806))). See also MacGinnitie v. Hobbs Group, LLC, 420 F.3d 1234, 1239 (11th Cir. 2005) (stating that "[c]omplete d