tion or occurrence that is the subject of the complaint — "refusal to grant leave to assert [the] counterclaim[s] would be an abuse of discretion." Fuente v. S. Ocean Transport, Inc., 933 So. 2d 651, 654 (Fla. 3d DCA 2006); see also Kamareddine v. Demery, 600 So. 2d 1311, 1312 (Fla. 3d DCA 1992) ("Denial of leave to file a compu