Looking to sell your business? You're looking at stiff odds. According to Michelle Seiler-Tucker, a business broker and founder of New Orleans-based Capital Business Solutions, 60% of business owners who try to sell their businesses can't get a deal done. Seiler-Tucker has owned and operated eight successful businesses and has also sold hundreds of franchises and businesses. She claims to close nearly 98 percent of all offers she writes, and says on average she obtains a 20 to 40 percent higher selling price for her clients. She also wrote the book Sell Your Business for More Than it's Worth. Here's her advice.