Certainty and uncertainty can sometimes be the difference between success and failure. Certainty can be created through properly considering the law and how it can help you in every aspect of your business. Most of the legal problems that arise in business could have been prevented through a better consideration around the legal framework of what they were trying to do.
There are many scenarios where this can occur such as a badly drafted contract or no contract at all, having an assumption on how something works, when it may not work that way at all, or a law that has changed and you have failed to change with it.
From the moment you create or consider buying a business you should seek legal advice on all the ways the law can help you succeed in that business. As well as all of the things that need to be considered that could damage that business. A good relationship with a commercially minded lawyer should be a rewarding and profitable relationship, not a dry one that you avoid.