Answer: condition subsequent
Explanation: A condition subsequent is an incident or set of circumstances that bring something to a conclusion. A subsequent circumstance is being used as a symbol in a legal sense to put an end of one's constitutional rights or responsibilities.
This generally occurs when someone do anything illegal or unethical in the eyes of law. In the given case, Franco got employed by some other party although he had a contract with James that he cannot do that. Hence we can conclude that the given case depicts condition subsequent.