This dissertation aims to contribute to the advancement of knowledge on the analysis of investments with real options in the implementation of blockchain technology in notary offices under the Brazilian legal framework. To achieve this, a theoretical model was developed based on the Real Options Theory (ROT) to analyze investments in blockchain technology, considering varying levels of adoption of this technology in notarial and registry services, as well as types of real options. The adopted methodology encompasses: (i) bibliographic and documentary research on the central themes of the dissertation; (ii) content analysis to map the types of notarial and registry offices existing in the Brazilian legal framework, associating them with the reported levels of adoption of blockchain technology reported in the literature; (iii) development of a theoretical model for the analysis of investments with real options in the aforementioned context; (iv) of the applicability of the proposed model, based on primary data collected from an extrajudicial office located in the state of Paraná; and (v) reflective analysis of the potential economic and non-economic benefits of adopting blockchain technology in notarial and registry services in Brazil. The main results include a model for the analysis of investments with real options in the implementation of blockchain technology in notarial and registry services in Brazil, along with an assessment of its economic and noneconomic impacts on titular officials, service users, and society in general.