I have a small pest control company that services one 300 unit building, that's it. 1. I need to be able to setup each apartment separately as if it was its own account, but bill 1 master account. 2. I need to be able to schedule follow up treatments. Such as, if one unit has mice, I need to be able to set up initial treatment and future treatments as well. 3. I need this to be very much like zoho invoice but with a few tweaks to make it work better for us.