Before a business plan is presented to funders, they would like to see that at least some low cost steps have been taken by the founders. One of these is to choose a legal structure for the business and to incorporate it, a process which generally costs only hundreds of dollars.
There are three major issues to consider when choosing a legal structure: control, liability, and taxes. Different legal structures have pros and cons on these three issues and you must seek what you are comfortable with and what will work best for the business both now and throughout its projected growth. The major legal structures to consider are sole proprietorships, partnerships, limited partnerships, corporations, and S corporations.