The present invention provides a method for creating finalized legal documents. The method includes the steps of: establishing a blank legal document; inputting data and inserting the data into the blank legal document; identifying the data and importing a corresponding template into the blank legal document; updating options of term and condition entries in the template; creating a primary legal document according to the data and the template; sending the primary legal document to related users for a term and condition entries review; receiving opinions reflected by the related users and integrating the opinions; determining whether any term and condition entries need to be redefined according to the opinions; and creating a finalized legal document if no term and condition entries need to be redefined. A related system is also disclosed.