Koh agreed to provide cleaning services for one year to Mid-Town Management Inc, which operates several large office buildings in Saskatoon. The contract price was much cheaper than what other cleaning services were offering. In its dealings with Mid-Town, Koh always made clear that it was acting on behalf of a principal in contracting to provide the services, though it never identified who that principal was. In fact, Koh was acting on behalf of Down-Town Realty Inc, a competitor of Mid-Town’s. After six months, Koh stopped providing the services. Is Koh liable to Mid-Town for breach of contract? Explain your answer.