Here's how to get started: find a bargain "fixer-upper" owned by a worried seller. The hardest house for a homeowner to sell is a "doghouse," "dump," or "fixer-upper." These run-down houses turn off most home buyers, who don't have the money to cover the down payment, plus closing costs, new furniture, carpeting, appliances, roof repairs, and other deferred maintenance required to bring the home back into top condition.