Property registration is mandatory in the Law on registration of Deeds and Property approved in 1310; However, we are witnessing real estate in the country that does not have a record of registration in the real estate office and consequently does not have a title deed, and in the above-mentioned law, registration of unregistered real estate transactions has been declared under mandatory conditions and an executive guarantee in This is foreseen. On the other hand, despite the fact that property registration is mandatory in the relevant laws, we see properties that do not have a record of registration in the real estate office and are normally bought and sold, which has led to many property disputes and lawsuits in court. In turn, it causes psychological, economic and other problems. The main purpose of this dissertation is to analyze why and how the property registration laws are passed without an official Document. The method used is descriptive-analytical and library studies. The results show that regarding the registration status of unDocumented properties, the new law is dedicated to properties built within the city. Also, with regard to conducting conflicting transactions in relation to registered property and in order to create a suitable legal system to prevent conflicting transactions, in addition to the formalization of immovable transactions and its mandatory registration, it is necessary to legislate an objective contract system for these properties. In addition, if transactions are not mandatory according to the official Document, all actions taken under the registration law will be of little use and useless.