lief rendered a declaration advisory only and therefore futile to effectuate a settle- ment of the controversy. • SUTTON 645 John D. Marsh, Asst. CV Atty., J. W. Watson, Jr., City Atty., Miami, Fla., for appellant. George C. McCaughan, Miami, Fla., and Arthur A. Kimmel, Miami Beach, Fla., for appe