In my opinion, such a case should be investigated with a lawyer. I can't tell you exactly what to do because I am not a lawyer. When my wife and I were buying a new piece of land for living, we had similar problems, but the seller, as a result, moved everything as needed so as not to create a conflict. True, today we are thinking about moving abroad. We've even found where. We decided that India is a very interesting and cool place for a new home. And we have even found a project
https://prestigekanakapura.houseey.com/ in which we are going to invest money. This project promises that all the necessary services for existence will be nearby and the living conditions themselves will be ideal. Do you think India is a good place to live in?