Using Quickbooks for self-storage facility

[Erin K.]

So we recently closed on our first self-storage facility. The prior owners used Quickbooks and gave me their license and back up file, but I think that they were not really optimizing QB - mainly just used it to generate invoices. I wondered if anyone has used it for this and could just give a little info about how best to set it up (is each "customer" a unit, etc.). I have used QB for years so am not starting from scratch, but want to start out on the right foot since it is a lot of units to keep organized.  

Thanks for any assistance! 

Erin in Ohio