Hi @TChappell5,
From what you’ve elaborate, I’d go with this:
- Tenants = Companies
- Units = Deal / custom object
- Building = property of whatever object is used for units
- Campus = property of whatever object is used for units
If you’re about to purchase a Professional or Enterprise subscription, let me know. As a HubSpot solutions partner I can provide help to kickstart your setup.
Best regards!