It's funny though, folks. How it is that the problem tenants are always DSS? Of course private tenants 'could' cause similar problems. In my experience they don't however, because they have an economic interest in maintaining their property - co-owned or otherwise.
I've suffered similarly in my tenement block. I used to complain but accidents kept happening to my car. I complained to her, her landlord, and the council. No one is interested. The council talk of diaries and mediation. How can you mediate for someone leaving old mattresses in the close and letting her dog crap in it?
She doesn't take her bin out and when it's full, she uses everyone else's. Despite a free council collection, she disposes of old furniture just yards from where the council could uplift it for free!
Now I shut the door, turn up the TV, and do my best to ignore it and try to forget the days when my neighbours and I benefited from a clean, well kept close with a working entry system. All damages in my close have come from DSS tenants who don't care, and have no economic interest in the property. Thankfully, I won't be living where I do for too much longer and then it'll be complaints to council, DSS, social work dept, - freed from the worry of damages or far worse.
My advice Suade7 is for you to sell up and move. It will take an extraordinary amount of courage, determination, not to mention expense, for you to win the day through normal legal channels. And if you do? One problem tenant will be replaced by another.
DSS tenants are not scum and I'm sure the vast majority are responsible. But the tenants who behave like scum, trust me, are DSS. So let's not get all high and mighty with the snobbery accusations.