EDIT: To get the Multi Rental Unit feature (you can share common locks between properties), upgrade to version 02.00.00 or newer. You can configure up to 8 properties (more in future) each with their own AirBnB, Homeaway/VRBO calendars.
Original:
This app can program multiple locks simultaneously, so you can have one AirBnB listing and synchronize the user codes with multiple locks (deck door, front door, main gate, garage door etc).
However it is never a good idea to have multiple apps program a single lock as they will clash with each other. Plus it can have unintended side effects like the lock running out of slots trying to consolidate codes from multiple locks.
In your situation you have three separate “units” each with their own lock and their own listing. RLA can manage each listing and lock for you independently.
The best way to handle this situation would be add a keypad on your main door for each of your rooms and program that keypad along with the room lock using RLA (it can program multiple locks/keypads).
Then use the Lock & Door synchronizer to unlock the main door lock (one way synchronization from your Keypad to Main door lock) everytime the user unlocks the keypad.
The added advantage is that when they unlock using their room keypad at the main door, you can have the lock & door synchronizer unlock both their rooms doors and also the main door.
The reason for one way synchronization (from Keypad -> Main door & Room door) is so that when someone unlocks the main door it doens’t unlock their room door as well.
With this setup you can total automation and synchronization between the main lock and the room locks while maintaining a separate list of users for your main lock.
Keypads are cheap, you can buy them for $10 to $15 on eBay.