At the same time, rental housing suffers from a bad reputation: landlords are often perceived as being exploitative and only too happy to offer crowded and sub-standard housing at the highest price they can get from the vulnerable poor. Rental housing, especially at the lower end of the market, has also often been seen as being shrouded in illegality and as contributing to inner-city decay. The frequent eviction and mobility of tenants have been likewise seen as potential sources of civic unrest