This contract commentary, which has now become a standard work, presents the developer contract in its various stages and forms. The author draws attention to the specifics and problem areas that need to be considered in contract design through a systematic presentation of developer law. All sample texts are thoroughly explained, and the significant case law that has emerged since the previous edition is comprehensively incorporated. The new edition is being released in a timely manner with the planned changes to developer law, coinciding with the enactment of the law. These changes include, among other things, effective protection for the buyer of a developer property in the event of the developer's insolvency, improvements for a stakeholder-oriented and economically sensible design and execution of construction measures, as well as enhancements to consumer protection. The work contains all essential information for practical application.