Just my opinion, but think we have seen bottoms now [ with the exception possibly of brisbane, perth is too tough to call]. I cant see sydney and mel going further down in the remainder of the yr. There are a few reasons for this:
1. Supply has reduced a bit, not by much but a bit.
2. The $A has come down, making them more affordable to overseas investors. Cnotinued issues in US/Europe and also the Middle east cannot be solved in the near term, so volatility, uncertainty will reign in the short term. This has tendencies for the $A to fall against the $US.
3. Other investment classes especially shares are so damn volatile, investors are seeking more safer places such as fixed/physical assets like gold and property.
4. Tough to see interest rates increase for the rest of the year. Yes, inflation is high, but the RBA has already said they think its manageable and that a lot of it is due to 'one off' factors such as floods etc earlier in the year. Last time I read, the market has priced a 50% chance of a .25% cut in sept [ or a 50% chance of hold in sept- markets pricing 0% chance of rise in sept]. I generally agree, they will either be cut by .25% or left or hold. The threat of rising rates for the year seems to be muted [ not the case 3 months back].More and more investors are thinking the same.
5. Buyers have realised that vendors wont keep discounting. Properties that have been discounted have pretty much been as much as they can. And with rates either on hold/falling in the next few months investors are thinking the market may have bottomed out. I think we will see in around Nov-dec that prices will regain an fair amount of lost ground, but not all of it.
It's just my opinion, but I reckon your opinion makes sense. Still, happy to wear a bit of flack if my opinion of your opinion turns out to be wrong!