The Jewish were one of the most numerous ethnic groups among the urban population of the Ottoman Empire’s Balkan provinces, and the Jewish community in Bulgaria is one of the oldest in Europe. In the Ottoman state, the co-existence of different religious representatives as determined by the millet system, which was adopted by the Ottoman Turks from other Muslim states and developed at the initial stage of the Empire's existence. It assumed a certain autonomy for religious communities. The Jewish community had its own religious court, beit-din, with the help of which civil cases were resolved. The Jewish Religious Court forbade representatives of the Jewish community from appealing to the Sharia courts on issues within its competence. However, if the parties to a legal dispute were a zimmi (i.e. non-Muslims) and a Muslim, then the dispute should have been unconditionally considered in a Sharia court with the application of the norms of Islamic law. An analysis of the kadi court’s documents related to the cases of representatives of other confessions makes it possible to draw some conclusions about their occupations and the degree of integration into the urban society of Sofia. So, we can refute the thesis about the semi-autonomous existence of Jewish quarters in Balkan cities – we can talk about the erosion of the ethnic isolation of the places of residence of Jews in Sofia, and their active settlement, first of all, traditionally Christian quarters. An analysis of the source allows us to conclude that Jews actively interacted with representatives of other religions, participating in transactions for the sale of property with Muslims, while often it was not so much about the sale of residential buildings but about investing capital. A large number of shop sales deals testifies to the fact that members of the Jewish community had an active business life.