Released Properties Need an Invisible Random Timer

[Almagnus1]

You can't without killing the demand. It is already against the ToS, so the only way is to have supply meet the demand.

And the only way to do that is with increasing supply (like giving every neighborhood at least two more wards) and by reducing how many houses an account can hold down from a max of 16 to like 2-3.

You really need the timer plus both of those changes to kill off the market.