I really just don’t get your reasoning.
If you have $250k to buy, you can really get a good deal now and drive a hard bargain, true enough. But at the rate things are falling in price, in 6 – 12 months you can get the same place for less. Why buy now?
Furthermore, if you must buy now, with that kind of liquidity, you can get a terrific loan. If this is going to turn into a rental in a year or two, nothing like a 5% loan to make it cash flow. A common and profitable tactic is to buy a rental property with an owner-occupier rate loan.
Preserving your liquidity really keeps your options open; sinking it all into an all-cash purchase does not.