Business Law- Contracts

Ginger is a Certified Public Accountant in practice by herself in Centerville. She merges her practice with that of Heap, Big, and Co. Part of the merger agreement states that if Ginger should ever leave Heap, Big, and Co., she promises not to practice public accounting in Centerville for a period of ten years after leaving. Discuss the requirements for a valid and enforceable covenant not to compete and discuss whether or not this particular covenant is enforceable. What is covenant not to compete? Under what circumstances will a covenant not to compete be enforced? When will such covenants not be enforced?