A method of communicating information about first interaction data with a reader for completing a remote check-in process in a multi-room facility, wherein the method is configured to be performed by all non-networked and networked readers of the facility, wherein the reader is a device or collection of devices used to control access to a protected asset, the method comprising: using a credential interface of the reader to establish a communication channel with a mobile device; receiving an electronic key from the mobile device over the communication channel; determining that the receiving of the electronic key corresponds to a first instance of the electronic key having been used by the mobile device, said determination comprising analyzing contents of the electronic key for an indication whether the electronic key is being presented to the reader for the first time and has not been presented to any other reader prior to being presented to the reader, wherein said analyzing contents comprises checking whether the electronic key includes a marker indicating that the electronic key has already been delivered to the reader or to any other reader; in response to determining that the receiving of the electronic key corresponds to a first instance of the electronic key having been used by the mobile device, generating first interaction data, wherein the interaction data comprises an identifier of the key or guest; in response to determining that the receiving of the electronic key corresponds to a first instance of the electronic key having been used by the mobile device, updating the electronic key (124, 212) in the mobile device with the marker in the electronic key indicating that the electronic key has been delivered to a reader (128, 132); transmitting the first interaction data to an access control server and/or a property management system for completing a check-in process, via the access control network when the reader is a networked reader, or to the mobile device via the communication channel, when the reader is a non-networked reader; analyzing the electronic key with access control logic stored in a memory of the reader; and making an access control decision for the mobile device based on the analysis of the electronic key. using a credential interface of the reader to establish a communication channel with a mobile device; receiving an electronic key from the mobile device over the communication channel; determining that the receiving of the electronic key corresponds to a first instance of the electronic key having been used by the mobile device, said determination comprising analyzing contents of the electronic key for an indication whether the electronic key is being presented to the reader for the first time and has not been presented to any other reader prior to being presented to the reader, wherein said analyzing contents comprises checking whether the electronic key includes a marker indicating that the electronic key has already been delivered to the reader or to any other reader; in response to determining that the receiving of the electronic key corresponds to a first instance of the electronic key having been used by the mobile device, generating first interaction data, wherein the interaction data comprises an identifier of the key or guest; in response to determining that the receiving of the electronic key corresponds to a first instance of the electronic key having been used by the mobile device, updating the electronic key (124, 212) in the mobile device with the marker in the electronic key indicating that the electronic key has been delivered to a reader (128, 132); transmitting the first interaction data to an access control server and/or a property management system for completing a check-in process, via the access control network when the reader is a networked reader, or to the mobile device via the communication channel, when the reader is a non-networked reader; analyzing the electronic key with access control logic stored in a memory of the reader; and making an access control decision for the mobile device based on the analysis of the electronic key.