I am lucky to be in a position to half own one house with my sister, and my mum half owns another with her sister. One by the beach and one in the alpine region.

For us there are no issues with the beach house. It is currently rented to desal for the next year. After that, it gets about $1,500 a week for peak season, so it pays itself.

The alpine one is a bit tougher. Too many issues with others using it and not contributing anything, so my mum gets lumped with the expense. My DH and my dad maintain it, which makes it easier, but co owning in quite hard. But because it is in such a lovely spot, everyone wants to go there.