Ownership can be registered in two ways: you can either register the ownership yourself before selling your apartment or the new owner can register the ownership after the purchase.
You can also complete the transaction as before
You can buy or sell an owner apartment as before: the transfer of ownership is marked in the share certificate, and the paper certificate is transferred to the buyer.
After the transaction, the new owner (buyer) will apply for the registration of their ownership in the Residential and Commercial Property Information System. When the ownership is registered, the paper certificate will be made void.