My mother and her sisters are worried that the sister-in-law has transferred their parent's property in her name.that property was given to her husband ( their brother) after the original building had collapsed. At that time, he was unemployed and others were working and he did not have a house. This was in 1974. Once the new building was constructed in 1990, this brother and his family moved in and are still occupying it. But this brother died in 1998. My mother and her sister believe that the sister-in-law (widow of this brother ) by now after 22 years since occupying must have already transferred that property in her name. Is there anything my mother and her sister can do to claim inheritance right to this property and prevent the widow from to selling it?