Xero Accounting for Real Estate Invoices

We are a real estate company and developer. When we sell a unit, the customer is provided with a Reservation Agreement and a Sale and Purchase Agreement. Within the Sale and Purchase Agreement, there are milestone payments consisting of five respective payments... (Budget: $25 - $50 USD, Jobs: Accounting, Bookkeeping, Financial Analysis, Financial Consulting, MYOB, Project Management, Real Estate Management, Xero)