If you've got an unusual business, with rare assets, liabilities or cashflows, this might not be the solution for you. Hopefully, companies like Dun & Bradstreet (DNB) or Google (GOOG) will offer a cost effective service one day like BizEquity.
One other bit of advice. If you own a business and are in a marriage that you are not sure is going to survive, think long and hard about whose property the study is, who knows about the existence of the valuation and where it's kept. If things go south in the relationship, a third-party business valuation might turn out to be the smoking gun your departing spouse needs to hold you upside down by your ankles and shake.
Under the right circumstances, having your attorney conduct the study on your behalf might shroud its' existence behind the attorney/client privilege.
This article is commentary by an independent contributor, separate from TheStreet's regular news coverage.