Starting a hotel in Nainital, how to secure the money paid as capital

I am starting a hotel in Nainital(UK) district with a local resident who have a piece of land in his name registered in Khatauni. We came to an agreed price of that land and I am paying him half of the agreed amount of the total land price. Since I am based out of Uttrakhand and can't buy that much area of land in my name(I don't want to get into getting permissions under section 154), how can I secure the amount I am paying to him. We have a partnership firm registered and he is suggesting to lease the land to the partnership firm but I am concerned about his rights on land. Please advice.