What is the required capital investment?
What is the annual net increase in sales?
What is in inventory?
What is the debt?
What is the prospect of the owner staying on?
What makes this company different/special/unique?
What further defines the product or service? Bid work? Repeat business?
What can be done to grow the business?
What can the buyer do to add value?
What is the profit picture in bad times as well as good?