The biggest problem in franchise is people getting into businesses they know nothing about. Before choosing any franchise, do careful research. It is good to pick a product you are already both familiar with and really like. For example, if you love Subway sandwiches, then look into Subway. Finally, you want to choose a location that needs this franchise and industry. Do a market analysis to see if there are customers before you open a new business anywhere. You also want to look carefully at the profit margins and franchise fees, to see if the franchise is profitable. Finally, you want to see what the franchise owner does to support you. Some franchisees just get a name and buy products from the parent company, while others get support in everything from training employees to advertising.
I think that if you are trying to decide on whether to franchise or not one of the most important things is are you financially able to afford to franchise. There are start up costs associated with franchises and there are also extra costs to keep up with the requirements of the franchise.
There are several aspects that you don't have to neglect when choosing a franchise.
The first important thing is the legal aspect. For this aspect you'll have to think seriously to hire a lawyer to advice you when you are signing the agreement when you're getting the franchise.
Another important aspect is your expertise in the domain you want to open the business.
Also, to know everything about the target market, in order to fulfill it's needs, is crucial when you are choosing a franchise.
The last but not the least is the financial aspect. You'll have to be willing to spend some money for your business to work.