I don't compromise my own ethics in response to someone else compromising theirs. Rightly or wrongly (and yes, I'll admit; somewhat naively), I tend to expect the same of others.
I'd hope that nobody else here would think the same way; surely ethics still have a place in property investment.
And you know that'd be a criminal offence, right?
Assuming this property is in NSW;
http://www.austlii.edu.au/au/legis/nsw/consol_act/rta1987207/s79.html
http://www.austlii.edu.au/au/legis/nsw/consol_act/rta1987207/s79b.html