The German real estate sector has overcome the crisis. For the most part, the market actors no longer feel the turbulences which had affected the markets still a few months ago. While the last few years have been characterized by highly speculative transactions, today the need for security is the central issue of all considerations by investors. In addition to producing reliable data about the target properties, this includes in the first place finding reliable partners on a management level and on an operational level. Integrated one-stop services are therefore inevitable for investment properties.