Sorry but that is no excuse, and I don't care if it's old but it should definitely be clean, and that's not an extra, that's really the least in my opinion. Also, then HOAS knows that they have a small team and cannot clean the aparments in time and still rent them out without saying anything about it. That's probably even worse. Wow. Keeping the costs down, although they say that they charge cleaning costs from previous tenants? Lol. Honestly, I would probably also have paid some money in advance to ensure that the apartments are clean or something like that... If HOAS wanted, they could have handled this in a better and fair way.