Custom Property Management System Web Application with Tenant, Lease, Payment Tracking, Notifications, and Financial Reports” Hello, I am looking for an experienced developer to build a custom Property Management System (Web Application). I own 6 buildings that include apartments and shops, and I need a system to manage everything in one place. Main requirements: • Manage buildings and units (apartments, shops, offices) • Track unit status (occupied / vacant) • Tenant management (name, phone number, ID if needed) • Lease management (start date, end date, contract upload PDF) • Automatic notifications before contract expiration • Rent tracking (monthly payments, payment status, late payments) • Expense and maintenance tracking • Dashboard with: • Total income • Total expenses • Net profit • Occupancy rate • Vacant units • Reports (financial + tenant + maintenance) • Alerts for late payments and expiring contracts Additional requirements: • Simple and user-friendly interface • Mobile-friendly (responsive design) • Secure login system • Backup option Please send: • Your previous similar projects (if any) • Suggested technology stack • Estimated time and cost "84512"} I also need a notification system with automation: - Email notifications for: - Contract expiration (before 30 days and 7 days) - Late payments - New contracts - WhatsApp notifications (very important): - Contract expiry alerts - Payment delays - Important updates Preferred: - Use official APIs like Twilio or WhatsApp Business API - Ability to customize notification timing - Notifications should be automatic (no manual action) Please include this in your proposal with cost