What is the best way to associate a building with a person?
In order to answer &quot;best way&quot;, would need to know what are the tasks you do that use this information and what reporting you need. But as a general answer, one way is to create a new contact type (Admin - Customize - Contact Types), and then add your buildings as contacts. You can create custom fields on those contacts to store camera information etc. Then create a relationship (on the relationship tab on the contact) to the people (or household, depending on whether you're using household records or not, or simply prefer to directly relate to the people). Then when the people leave, you end the relationship(s) and make new ones with the new people.