Commercial lease law is heavily influenced by case law and has increasingly developed into a specialized field in recent times for this very reason. For practitioners, it is therefore a challenge to quickly familiarize themselves with the complex subject of commercial lease law and to stay up to date. This work facilitates the entry into commercial lease law. Current developments in case law are addressed according to their practical significance and explained with practical tips and guidance on contract design. Key focus areas include: - Distinction issues - Written form of the lease agreement - General terms and conditions - Disruption of the basis of the transaction - Rent and rent levels - Additional and operating costs - Warranty - Duration of the lease agreement - Operating obligations - Termination.