OLAND "If an investor comes to us and says they have a problem, we simply solve it," declares Maciej Gołębiewski, the leasing and marketing director for developer Avestus Real Estate. The company is also in charge of the commercialisation of the Wilanów Office Park project in Warsaw's Wilanów district, which is being carried out by another developer, Polnord. Lipiński Passage - a renovated tenement building in the heart of Warsaw - provides another example. The owner of the office property, the German-based Union Investment fund, has ended its cooperation with Savills and chosen a developer, S+B Gruppe, to complete the leasing process. Is this normal behaviour?