Abstract: Disclosed is a rental service provider messaging system comprised of a system database configured to receive registration details of rental service providers. The database is configured for the registered rental service providers to enter details of clients required to contact the rental service provider. The client details include particulars of predetermined acceptable government-issued identification associated with that client and is also configured to be searched by any registered rental service provider when initially engaging with a client for any recorded entries for that client. The search includes the particulars of details of predetermined acceptable government-issued identification of the client. The database is also configured to electronically message the registered rental service provider that listed the client on the database if the client is revealed in the database search.