Distribution of Property

Sir I ASHIM DAS resident of Dadar East Mumbai.On dated 06/10/2018 my father expired due to heart attack. As he died suddenly so no will was made by him.I have two more sisters they are well settled but I am jobless abd I don't have any property except where I am leaving now which was owned by my father.After his death my sister's claiming rent for this flat where I lives now. Please suggest me what to do now. After request they agreed to live in the flat for six months only.They said after that if I am lives here then I have to pay rent for this flat.They also told me to sell this flat within this six month and share the amount equally between three of us.And if I am not able to sell within this six month then I have to pay rent to live in this flat. As I told that I am jobless and also very high Dialectic and my age is more than 40 years and no source of income also how I could pay the rent but they are denying to undrstand anything. Please suggest what to do if I am unable to sell this flat within six month.