Is it all property management if the invoice for buying a house is not issued?

Purchase invoices are issued by developers, and property companies are not responsible for issuing purchase invoices. Purchase invoice is one of the important documents for buyers in the purchase process, which is used to go through relevant procedures and prove the ownership of real estate. Property companies are responsible for collecting property management fees, rather than issuing purchase invoices. Property management fees are service fees, and property companies will issue service invoices or receipts instead of purchase invoices.