Tenants causing a nuisance to local people can be evicted. That is for you to agree with your tenant. You can end the tenancy at any time after 6 months, provided any fixed term you agreed has ended. You only need to give your tenant 2 months' written notice that you want your property back. These include rent arrears, anti-social behaviour, and damage by the tenant.
Most tenants do.
You cannot evict a tenant yourself but you can apply to the county court to get your property back. In certain cases you can use an accelerated possession procedure which can avoid the need for a court hearing. There is also the risk of vandalism, squatting and complaints from neighbours. Repairs to the structure and exterior of the property, heating and hot water installations, basins, sinks, baths and other sanitary installations. The safety of gas and electrical appliances.