The software is only suitable for HK-BK-billing (no rental accounting or "Open Items" management possible). Furthermore, you can initiate the Annex V for the control, and can be seen on templates for rental contracts and other sample letter access under the Lease. Where rent increases at or modernization rent increase notice with eg behind it a complex matter, with which one should sit apart in advance.
The service charge or heating bill is a complex matter - the software helps accommodate the various data, by means of clear input masks, and - hopefully - to spit out an accurate accounting for the tenants. The user guidance is simple and clear, and there are still different from Buhl Data Sheets for aid procedure. However, there remains a not spared as a landlord in advance to obtain comprehensive information about the different types of costs and rights / obligations. Unfortunately, there are no shortcuts to the principle technically necessary input (as in the "Tax Tips" program for tax return in which the right screen edge always many technical notes are available). At this level, I would have liked more integrated assistance program, so a total of four stars. The lease wizard via a partner web portal (coupon attached) I have not tried, because the software stored form lease is also available, and after the first sighting is largely quite up to date.