Usually things that are attached to the walls, ceilings and pipes must be included in the house for sale. However, if you do not want to sell something that is secured to the wall or the ceiling, be sure that you specially mention it during your transaction. If you are confused about any step of the transaction, do not hesitate to obtain professional help.
In fact it might be a wise thing to consult an attorney for some legal help. You may not be aware of all the official aspects of this process. It may prove to be a little difficult composing the contract. So to ensure that everything proceeds in a smooth and uninterrupted manner, always look before you leap. Take each step very carefully and slowly. Lastly, always remember to be as polite as possible when dealing with any of the prospective buyers; even if you have to reject their offer.