Yes - DIAS transactions can be conducted through Linear both when the subject of the transaction is a real estate company and when the real estate company is a party to the transaction.
If the subject of the transaction is a real estate company, the DIAS is conducted as a DIAS transaction for housing shares.
If a real estate company acts as a party (seller or buyer) in the transaction, it is important to note that the customer type should be marked as Business customer in the CRM, and that you have all the necessary attachments for the DIAS transaction, for example, a trade register extract and minutes.