how can i file Separation from my married son

Father and Son have differences and father do not want to stay with son nor want to do business together. Where is : Business : on the rented place that is belong to father only since 30 year. father told to son verbally find your own business and move out. son forcefully comes in business and operate it. legally he is nothing in the business. Residence : on the rented place since 8 month. Rent deed with the father and mother name. Father told to son find your own place but he do not do that. Home : we have a booked home in Mumbai which is under construction and 95% of money is paid but still no position. this home with the name of Father, mother and son. Question is : 1. How i can make him separate from my business place and residence and what is my legal obligation to do for him ? 2. If i want to sell under construction [ which is loan free ] home and if my son does not co-operate that what is the other legal option are with father and mother.