If you have two controllers you can sign on to an account that owns a building and use the second controller to make a sidekick then as P1 move the money bar all the way to the sidekick and go into the game then sell a building and buy it then sell it constantly (i suggest the Inns since thier bassicly the best money maker) then make the sidekick leave so it saves the money on its file then quit without saving on P1 and youll still have all your money and building this bassicly just copies the money onto the sidekick and its how most people get money.