The study is devoted to a comprehensive theoretical and legal understanding of the unity of rights and obligations as an independent principle of legal regulation. The work comprehensively investigates the nature, content, internal structure and functional purpose of this principle, determines its place among the general legal principles, and also reveals the features of its implementation in various branches of law and in the modern conditions of the development of the rule of law. The scientific novelty of the results obtained lies in the fact that the work is one of the first comprehensive studies in which the unity of rights and obligations is considered as an independent universal principle in the legal regulation of the modern rule of law. The author's definition of this principle is formulated, models of its manifestation in legislation and legal practice are systematized, sectoral features of implementation are determined, approaches to assessing the role of justice, legal certainty and the prohibition of abuse of law are improved, and practical recommendations are developed for improving legislation and legal practice in the relevant field. It is proven that the unity of rights and duties is one of the key prerequisites for effective legal regulation, as it ensures a harmonious combination of individual freedom with the requirements of law and order, the responsibility of other participants in legal relations and the needs of society. It is substantiated that any right acquires real meaning only when it is matched by an appropriate duty, while a violation of the proportionality between these elements generates an imbalance, abuse of rights or excessive coercion. The study pays special attention to the correlation of the principle of unity of rights and duties with the principles of justice, equality, the rule of law, proportionality, legal certainty and good faith. It is shown that it is their coordinated interaction that forms a holistic mechanism for the proper exercise of rights, conscientious performance of duties and maintenance of stable law and order. Collisions and conflicts in the sphere of the exercise of rights are separately analyzed, the limits of their exercise and methods of overcoming legal contradictions in the modern legal system are determined. A significant place in the work is given to legislative and institutional guarantees for the implementation of the principle of unity of rights and duties. The role of the Constitution as a basic act that should consolidate a balanced model of relations between man, society and the state is revealed, as well as the importance of courts, state authorities, local self-government, law enforcement agencies and the Ombudsman as institutional guarantors of the restoration of the violated legal balance. The role of judicial practice as a form of specifying the content of rights and duties and an important means of ensuring their balance is highlighted. A separate direction of the research is devoted to modern trends in the transformation of the concept of unity of rights and duties in a state governed by the rule of law. This concerns the democratization of social relations, strengthening the responsibility of public authorities, expanding guarantees of human rights and increasing the importance of social solidarity in the conditions of new security challenges.
