Simple, choose a property early on, I suggest Bowerstone Market, "The Silk Moon", next door to the tavern. Buy it and then fill it with as much 5 star furniture as possible. Chances are you won't be able to buy it all at once from the furniture store, so either a.) buy and then return a week later (sleep if you must) or b.) buy and then go to Bloodstone and buy it there. Once the house has been filled up. Play the game, do quests to improve your renown and also buy stuff from round town to improve the revenue and richness of the area. Then, go back and sell.
Chances are you'll get it for that alone, but the good thing with the Silk Moon is that, if not, there is a trophy plaque on the stairs where you can attach trophies whilst in Redecorate Mode which significantly adds to the value of the house.
Thanks to Olioster for the direction.