Abstract: A networked onboarding system that includes an onboarding accelerator (OA) and a request for amendment (RFA) module or application. The onboarding accelerator is a software solution or algorithm that is configured to operate to provide an automated and customizable end-to-end onboarding solution for users or subscribers (e.g., brokers, custodians, corporations, fund administrators, managers, service providers, and the like). The onboarding accelerator functions during client onboarding to integrate entity data, document collection, KYC (know your customer) and tax profile validation, regulatory protocols and self-declarations, legal and credit agreements, and operational set up into a seamless solution. The RFA module operates to enable a user or subscriber to initiate and execute amendments to add, remove, and modify legal entities (e.g., counterparty amendments) from its existing trading agreements with other subscribers to the services provided by the new onboarding system.