Some properties contain one or more units that are used independently. These units may be residential, such as apartments or mobile homes. They may also be commercial, such as business suites or stores in a shopping center.
When there are multiple units on a property, those units are best tracked using the Tenants tab on the far right side of the property record.
To make sure that other users know to look in the Tenants tab, it's worthwhile to create a "fake" resident with the last name of "See Tenants Tab" and use that in the Resident section, as shown in the screenshot below.
To add the addresses, rental units, tenants, etc. to the Tenants tab, follow the instructions in Add New Rental Units and Tenants.