I have a home in Georgia and we're in a contract with a basement remodeller to finish our basement. The contractor estimated that this would be an 8 week project, and the contract states that the project would be 'substantially complete' by the middle of December (the start date was middle of October). But here we are in the middle of January and we still have no flooring, the painting is only about half done, etc. Is the contractor in breach of contract? Or could the word 'substantially' be interpreted to mean that he isn't?