Upgrade and maintain system that consist of the next components: 1. Node JS based website that is communicated with backend Web API. Website is used as the main user interface for estates management to help lawyers with trials related to entities and persons bankruptcy processes; 2. Creditor portal – websites that are used by creditors to fill their claims related to some estates; 3. Web API backend application that executes main business and data management logic. It is used by front end website, creditor portals and mobile application. 4. Mobile application that is used for estates assets management.