Hi Kirsy0,
I'm no expert, but my understanding of landlord's insurance is to cover you when you are acting as a landlord - regardless of whether the house is an investment or not. It can cover you for wilful damage, loss of tenancy income, amongst other things - stuff that is not covered by by a standard insurance policy when the owners are living in the house. It's really important to be sure of all you facts ( and figures) before dipping your toes in, because as you say - it may well end up being counter productive. Personally, for such a long stay, I would be looking at a permanent tenant - then they are responsible for all utilites, etc. And I can't imagine the fees airbnb would add onto your rate over 6 months would make it terribly attractive for the guest financially? And you'd be caught up in airbnb rules and regulations as well as Australian tenancy regulations. As I say, I'm no expert and have no experience at all re permanent tenancy, but I would be wary...