Seven condo owners in the City-owned Hilton Hotel and 99 unit 5 Fifty Five condo project are suing the city-backed non-profit developer for noise problems and water leakage damage.The impacted units are located under a catering kitchen that is reportedly loud and susceptible to water leaks into the units below.According to the Statesman:The condo owners are suing Austin Convention Enterprises. Tony Ciccone, the lawyer representing three of them, said the problems caught his clients by surprise because they were . . .