How to disown an abusive daughter

I am a 69 year old widow , currently living alone as my beloved husband passed away last week of august this year . Since then my daughter has been harassing and abusing me physically ( throwing my personal belongings from my room , dropping water everywhere and throwing table upside ) , insulting me , using foul and dirty language and day before yesterday even tried to take away the portrait of my late husband away . I have tears in my eyes even writing this here , I have one flat on my name and other was on my late husband’s name which he had given to my son through gift deed 2 years back . Having some problems with the society where I stay related to unauthorized increments in the maintainance , they haven’t changed the name of my son on flat’s Ownership certificate . My humble request is to ask if I disown my daughter legally , can she put a stay on this flat transfer or not or any way do anything to me as she threatens me every now and then of suing me legally. Please help