For a condominium (PPE) apartment: the purchase deed, the co-ownership regulations, the unit allocation schedule, the easements, the minutes of the last three general meetings (the life of the building), the service charge statements and the status of the renovation fund. For a house: the land registry extract, the plans, the insurance policies and the invoices for works. You are not left to search alone: your broker gives you a checklist at the valuation stage and assembles the file with you. The more precise the information, the faster the sale, and the better your price holds.