Software for real estate operators and landlords to centralize administration of residential, commercial, or mixed-use property portfolios. Core capabilities include tenant lifecycle management (applications, screening, lease execution, renewals), rent collection and arrears tracking, maintenance request coordination between tenants and vendors, accounting and financial reporting (GL, AP/AR, CAM reconciliation), vacancy marketing and listing syndication, and compliance management (fair housing, lease regulations). The category spans enterprise portfolio platforms (Yardi, MRI Software) serving institutional commercial and residential owners, mid-market platforms (AppFolio, Entrata) for property management companies, and SMB tools (Buildium, Rent Manager) for individual landlords and small portfolios.