Toture by sister in law after sick husband's death

My late husband was a CA ,lawyer and was on dialysis since 2012.He had purchased a 2 bhk bungalow at Mangalore but in Father in law's name.He purchased a shop in FIL name and he was nominee.He purchased a 2 bhk house at Thane he being primary owner and FIL being coowner.all the properties were forcefully made in FIL name so that SIL can capture it later.FIL expired in 2015.Husband expired in 2016.After my husband's these people changed colours and did not allow me to serve his last rites at Mangalore.The house at Mangalore was transferred to MIL and nominee being SIL.The shop was also transferred to MIL and Husband and SIL are nominee.SIL was going to become Sole nominee but I stopped it by notice.The house which I am staying with my daughter has no nominee.But SIL is already nominees in all other properties.She wants a share in the house.My husband had LIC policies of 20 lakh MIL being nominee was also snatched away.I am working in a private firm with very less salary taking care of myself and daughter.Taking advantage of my husband's sickness, SIL has captured everything.The 2 bhk house which I am staying can be transferred in my name with NOC from MIL and succession certificate sign from MIL which SIL is not allowing.what is solution for my problem? .