For businesses in industries like construction or real estate, where unforeseen circumstances and hazardous conditions may hold the owner responsible, consider starting an LLC. The protection gained means you will not be held personally liable, protecting you and your family from litigation or the debts of the business. An LLC may not be the best choice for business owners who plan on raising capital through outside investment. LLCs are not public structures and do not have shareholders, so taking a company public is not an option either. However, in the event that you'd like to take your business public you may switch to a public legal structure, like a C corporation, later on.
Starting any business has a price, so you need to determine how you're going to cover those costs. Do you have the means to fund your startup, or will you need to borrow money? If you're planning to leave your current job to focus on your business, do you have money put away to support yourself until you start making a profit? Find out how much you're going to need.