“Never, ever become friends with the sellers. We made the mistake of feeling empathy for the couple selling their home because the husband had serious health issues. They moved out of state before closing. The wife told us where a key was hidden and gave us permission to start work on little things before we closed, like cleaning and removing furniture they left behind. We visited two days before closing to get to work, thinking we would stay overnight. No way.”

Source: https://www.buzzfeed.com/rossyoder/advice-for-buying-home