Entrepreneurship does not come without risks, and the necessity to increase the security of the investment is to have solid info about the business for sale and its fiscal status. There is a price to pay when you make a buy a successful business for sale, the costs are a lot higher than if the company would have been on the verge of bankruptcy. Moreover, you'd pay more money when purchasing a business than you'd need to start one. There are very complicated issues behind the merger or the taking over of one company by another one and all need to be cover in detail so that no problems may appear later.