How concerned should residents be about the staggering mushroom farm of condominiums known as Toronto? With as many as 100,000 of them under construction, there is rational concern that they are poorly-built and quite likely to become tomorrow’s slums. And think about this. Some say the desperate finances of the City have all but blinded politicians to the issue. They are grabbing the money from fees and taxes just to keep the city afloat day to day. Market Business News.