I have a close friend who owned a condo and stayed in it for 2 years ++. Needless to say he didnt do too well in his career and his children and wife got sick often. He was a non believer but he had some encounters at his home before. He was staying on the ground floor unit near to the lifts and the other side next to the playground. He and his wife would hear people talking out loud and lift doors opening and closing in the middle of the night regardless of the time. Yes, you may argue that its a condo lift but everytime he peeped to see, he couldnt see anyone and the voices would stop. He also could hear children playing on the swings but in the middle of the night? He was stubborn and refuse to believe but his wife was worried. When I came to know about it, I immediately asked him to consult a medium. He didnt know any and I consulted my master who agreed to help him.
When sifu went and checked the house, he said nothing much to my friend except "If possible, moved out immediately (if possible even that day). He gave some talisman to my friend and ask him to burn them in his house and some other rituals for the family. Needless to say, he shifted his family back to his mum's house. Proceeded to sell the house and bought another unit elsewhere. All is fine now, his children and wife are not constantly sick and he is doing well in his courier. Up to you people to believe. I never asked my sifu about this as it is not his style to tell you what happened.