“Fast responses” is too soft to enforce. Have them state target times for acknowledging routine messages, answering them, handling urgent repairs and escalating a missed deadline. Acknowledgement and resolution are not the same thing. Also ask what channel is monitored outside ordinary hours and...
Before spending too long modelling returns, decide whether each exercise is for buying a home or assessing an investment. The same property can look attractive under one set of priorities and poor under another. For investment modelling, state every assumption plainly—finance, ongoing costs...
That approach is useful, but the missing figure is the actual loan amount or LTV. The A$714,400 purchase price alone doesn’t show which tier applies, and a fee has a different impact on a smaller loan.
I’d model at least two exit dates rather than assuming either a full ten years or an early...