Software as a service (SAAS) services featuring software for real estate transaction management, namely, creating, completing, assembling, storing, sharing, tracking, and routing real estate offer packages, transaction documents, contracts, disclosures, forms, addenda, and attachments; managing electronic signature workflows, versions, deadlines, tasks, checklists, audit trails, and closing binders; and extracting, verifying, reconciling, and populating transaction data from listings, public records, documents, and user inputs.