Promissory note, blank promissory note and seizure with the consent of the debtor are enforceable legal institutes that aim to ensure the collection of the creditor's claim. Each of the mentioned institutes has its own specificities. This paper first explains the development of the institution of promissory note, blank promissory note and seizure with the consent of the debtor, starting with the original enforcement law in 1996 and its amendments, then the adoption of the new Enforcement Act in 2012 and its amendments. The main part of the paper is devoted to the analysis of the institution of promissory notes and blank promissory notes, primarily their characteristics and their regulation. Then a comparison was made between the promissory note and the blank debenture on the one hand and the security on the other hand, considering the great similarities between them. An analysis of the Register of promissory notes and blank promissory notes was also made, in the part that refers to the establishment of the Register itself, then its characteristics, subject of entry, legal effects of registration and the order of entry of promissory notes and blank promissory notes in the Register. The problem of subsequent registrations in the Register was also addressed, as well as the part related to who has the right to access data from the Register and what shortcomings exist in the register rules. After the analysis of the Register, the paper deals with promissory notes and blank promissory notes in the capacity of a final decision on enforcement of funds on an account in extrajudicial proceedings, then in court enforcement and promissory notes and blank promissory notes in the capacity of enforcement documents. The topics related to the transfer of the promissory note to a third party, the due date of the claim from the promissory note, the limitation of rights from the promissory note and the return of the promissory note are covered below. After the analysis of the promissory note and blank promissory note, the institute of confiscation with the consent of the debtor was processed, first of all its characteristics and the analysis of the seizure with the consent of the debtor in the capacity of a final decision on the enforcement of collection and other permanent monetary receipts as well as in the capacity of an enforcement document. Finally, concluding considerations related to the aforementioned superficial legal institutes are presented.