Tenancy

property is on firm name and business is close before 30 years ago and I'm using that block in resident use. There are five partner in firm one of my grand father. when firm dissolve all partner orally divide there shares and my share is that block. now landlord told me that I'm leaving illegally in that premises and rent is also pending since 30 years now I want to settle that matter so how I can take court help to transfer my firm and settle all rent matter