In CABA, evicting a tenant legally is very difficult....even if they are behind on the rent and bldg dues, is a nuisance to the neighbors, etc. The legal procedure must be initiated by the owner of the unit. It could take at least 3 years for a resolution and if they have minors or a disabled person living with them....who knows? A decent lawyer usually recommends that the owner pay the tenant off to abandon the premises. And then start proceedings against the guarantor(s) to collect back delinquent rent.