Approximately 650 million disabled people live worldwide. This number corresponds to approximately 10 percent of the world population. Unfortunately, these people are often victims and they have been discriminated. European Tribunal for Human Rights regularly deals with complaints from disabled persons with human rights conventions. In Germany, the Article 554a of the German Civil Law (BGB) has been inserted through a modernization of obligation law. This standard aims to improve the legal position of disabled people in tenancy situations while the tension between them is different and divergent forlegal entities and legal goods. There is no such provision in the many legal systems. It is therefore necessary to examine the standard in detail and to establish whether such a norm is also necessary in the other legal systems.