Jointly owned property muslim inheritance

My mother and I jointly own a flat in Mumbai funded entirely by my mother. However, I have always supported her throughout her life and paid all the bills in time. My mother keeps saying that this is your home since my two sisters do not take care of her financial needs. I have supported both my parents my entire life. Cleared my father's debt, funded their illnesses and managed every possible necessities. This was okay when I was financially sound. Today, I am not in that condition. My sisters refuse to help her daily financial needs. While their children have all grown big and married, I still have children to worry about their future education etc. To top it all, currently, I am also unemployed. Tired by all the repeated fights, I want to strike away my name from the flat so that my sisters stop fighting and talking bad about me. I am feeling so miserable and hopeless and wished I never included my name (which was upon my mother's insistence) in the property. I even suggested my mother to stay in my flat which is not occupied since, we live in another city. But, she does not agree and insists she stay in her own flat and I should bear the costs of it's maintenance. She keeps saying that her flat will only be mine after she dies and also says that I should give the sisters whatever is their right. How does that work? How is it compatible with Islamic law of inheritance in our Indian legal system? Could I make any paper that would rid me of this property? I don't want anything. Let my sisters have it all if they so wish, since, I can't take all this emotionally and feel very very depressed.