Daughter harrassing for property

Your paragraph is mostly grammatically correct, but there are a few suggestions for clarity and cohesion: I own a flat that I acquired in my name in 1982. Additionally, in 1991, I purchased another flat in my mother's name. In the society nomination form, my mother nominated my son. My brother and sister are aware that I bought the flat in my mother's name, and they support her decision to transfer the flat to my son. Unfortunately, my mother passed away in June 1992, and the flat was subsequently transferred to my son. Recently, my daughter and her husband have been causing distress by demanding the transfer of my flat into her name. She also claims to have a share in my mother's flat. In 2011, she emotionally pressured my wife and me into creating a will that bequeaths my flat to her after my demise. The building has undergone redevelopment, and my daughter has taken extreme measures; she locks the main doors of both flats and wrote "Disputed flat" with oil paint on the main door. She even damaged the nameplate of my son's flat and tampered with the door latch keyhole to prevent us from accessing the flat. I am unwilling to give her anything at this point. I am 80 years old, and it's not possible to face them, as my son-in-law is a violent person who could harm us. How can I prevent her from harassing both me and my son?