Re: sorry if its wrong place
Do you mean letting your home to persons on Rent Supplement from the Community Welfare Service? The house is not handed over to the "social services" - you are still the landlord, you advertise and screen your tenants as you see fit, and if they require assistance towards the rent, the tenants make an application for Rent Supplement. The Community Welfare Service has no contract with the landlord.
There is also the Rental Accommodation Scheme, which is where the local authority rent the property from private landlords, and place tenants in them. There are other threads on this topic.