I am opening a business in Sioux Falls. I've heard that noncompete agreements are not enforceable. Is this true?

Noncompete agreements are worthless."

No, this is not true.  Unfortunately, some small business owners often believe that noncompete agreements "are not worth the paper they're written on." 

In South Dakota, noncompete agreements can be enforced under certain conditions.  For some small businesses, a well-drafted noncompete agreement is often one of its most valuable legal documents.