What the stack should cover
Reliable reservation and availability control
Repeatable cleaner and turnover workflow
Central property information
Simple pricing process
Basic income and expense visibility
Do you need a PMS yet?
Sometimes. A PMS becomes useful when one booking change creates multiple manual updates across calendars, messages, tasks and spreadsheets.
What to avoid
Do not buy enterprise complexity for a four-property operation. Prioritize clean workflows, low setup friction and a path to scale.