It's great to have you here in the Community, @k_parrish-live-c. I'm here to help you track multiple properties in QuickBooks Online (QBO).
As 4Gal suggested, in QBO, you can use the class tracking feature. Once enabled, you can add all the properties to your class list and assign them when you record any transaction. This feature helps you track income, expenses, and profitability by segments and organize transactions by class.
To enable class tracking, follow these steps:
Go to the Gear icon and select Account and Settings.
Select Advanced and then Categories to edit the settings.
Check Track classes and Warn me when a transaction isn’t assigned a class.
Under Assign classes, select One to entire transaction or One to each row in transaction.