Mental harassment by my brother in laws

Hi, The problem started after my father in-law made the will in 2015, they started coming home and abusing my immediate family . I live with my in laws from almost 20yrs and rest all brother in laws live separate but in the same city. All have at least 3-4 property otherwise. They hardly ever visited their parents or did anything for them. Me and ,my husband served my father-in-law till his last breath,and did everything we can. According to his registered will ,ground floor where we lived always ,he gave to us and above portion to other brothers.but my brother-in-laws being selfish and money centric keep harrasing my family as they want everything.They even took my mother in law (but according to will father-in-law law made my husband her incharge as she is paralysed) to enjoy her half pension ,closed all her internet banking and threatening us that they would complain that we threw our mother in law out and challenging will to get back the full property.they through calls or visits always abuses us. My husband And me are undergoing acute stress ,depression and high blood pressure but their activities increasing day by day.they are also not ready to sign no objection .They are influential and keep provoking and threatening us to torture . I have all video recording when my in laws were with us how happy they were! Please guide us !! Thanks, Smita Singh