The current owner is making money, so I will make money too, right?
Not necessarily. A lot of things change when a business is acquired. Customers that were loyal to the previous owner may disappear. Employees may leave. Business conditions and markets may change. The financial structure of the business may change. In short, there are many critical factors which contribute to a business’s profitability that may change when you take over. Think through these carefully, and don’t assume that a profitable business will continue to make money when your assume ownership.