The regulatory framework (program documents, laws and other legal acts) of the regime of cultural heritage sites in Russia is summarized. Their qualifications are given, their functions are highlighted, and the distribution of rights and obligations between the owners and other legal owners of the cultural heritage object is noted. The concept of "mismanagement" is considered from the standpoint of substantive and procedural law. The main characteristics and problems of mismanagement of the contents of a cultural heritage object from the standpoint of ownership, liability, evidence in court, civil and financial law are identified.