My Father in law, senior citizen, gets rental income from self-acquired property is a chronic heart & kidney patient and my mother in law, also senior citizen is retired as teacher from Delhi govt with pension income. They have two married daughters and a married son(youngest).Son who have been rude, indecent, disrespectful towards parents & sisters, did love marriage despite protests from parents because he was hardly earning anything. Son used suicide threats and made them to marry him in 2017. Last year in June 2020 my in-laws decided to move from Delhi to Gurgaon to live alone near daughter's house but again allowed Son and his wife to also shift and live with them for few months because Son's wife was expecting baby. After getting baby in January, Son has become more violent, rude and aggressive towards parents. Son never shared any expense of house before and after his marriage and keep giving suicide threats. House expenses are managed on rental income and pension. Sisters decided to file application under Senior citizen act but kept on hold because Son again threatened to commit suicide (however I have given a copy to near PS and got reviving on safer side). Parents have secretly recorded his threats of suicide in phone when family of Son's wife came to discuss matter. Son is now asking share on property with another threat of suicide. Sisters are ready to let go their share in property if any. Family is in so much stress. How can we safely separate him even if father has to give him money and ensure no legal issue if (god forbids) he takes any idiotic suicide step. Please suggest.