Mental harassment by in laws

It’s been 9 year to my marriage ..we did love marriage but as my in-laws dowry requirement was not full filled as per their expectation.. they are mentally harassing me and my husband both we were in America for 4 years 3 years we were in banagalore now we are in same city from last one year before that I always use to leave the matter by thing that we have to go back to our work .. but when ever we come home for vacation and for any family emergency they use too harass both of us by saying different false blames ..they want both of us too leave the home they did property fraud with us too but we were helpless ..we left the house and start leaving separately because of peace in our life..but again my mother in law brother in law and his wife ..are harassing us by false blames they want us we should not go to their house because as per agreement we have equal rights in house but house is in my mother in laws name that Is the reason they are doing all this. My father in law is no more but at the time of property division they ask to sign the will to give the house to both son equally but they want to do the fraud they want to change the will I know she can do it but ..it enough I don’t know what should I do ..but now I want to do some thing and teach a lesson to them ..plz help