The "Universal Declaration" service consists in issuing a document that is not assigned to a specific lease agreement, which allows the tenant to freely search for an apartment with a ready declaration of address. Such a declaration is issued for a period of one year and can be used for various lease agreements, which provides flexibility in the rental process. Thanks to this, the tenant does not have to wait for the preparation of the document for a specific agreement, and can immediately use the declaration in negotiations with potential property owners.