An online purchase transaction system facilitates commencement, listing, selection, negotiation, documenting, closing and recording of complex transactions. The system allows for completion of transactions, such as commencement of a real estate listing through transfer with minimal or no direct third-party human intervention, thus maximizing cost savings and minimizing time to complete a transaction. Interaction through third party agencies, such as escrow companies, title companies, insurance companies and recording entities, is further facilitated in a fully or largely automated processing system.