Thousands of people in New Zealand are facing the nightmare of discovering they own a leaky building – and its estimated that repair bills could run into billions of dollars. To help homeowners negotiate whats been called a minefield of procedure, the company that first alerted the country to the looming crisis, Prendos, has released a free consumer guide. To find out more, Nzone Tonight's Allan Lee spoke to the Founding Director of Prendos, Greg OSullivan.