Once you have reached a final agreement on the price, another negotiation starts, on a lot of details not less important, such as the time you need to pay the rest of the price, what happens if you do not get the expected financing, the inventory of what the owner leaves in the property, the state of the water, gas and electricity services, the state of the building where the property is located, if there are encumbrances, when will the keys be delivered, possibility of visits before the final signing to take measurements... and a long etc.