5 THE ITALIAN LAW JOURNAL NO. 1 (2019) Invalidity of Contracts and the Protection of Third Parties’ Acquisitions of Land by Marco Rizzuti, Erhan Kanışlı and Lukas Rademacher Purchasers of land have a strong interest in becoming the fully vested owners of the land they intend to acquire. One of the risks a buyer potentially is exposed to stems from the legal relationship between the seller and the person from whom the seller previously bought the land. In this article, we examine the protection of purchasers in such scenarios in three jurisdictions: Italian law, Turkish law, and German law. The solutions adopted each represent the legal family to which they belong, and the findings of this comparative study therefore are not necessarily confined to said three jurisdictions. This article will however reveal that, under a surface of strong differences, it is possible to outline common trends and common objectives, and therefore that it is not at all inconceivable to hypothesize a harmonization’s perspective in this field. DOI 10.23815/2421-2156.ITALJ ISSN 2421-2156