ANSWER:
Since Lucy has signed the agreement with Zehmer, their have established an enforceable contract.
The court will have to see the agreement between the two parties as enforceable contract, which can only be terminated, if the two parties agrees. Therefore Lucy have to carry on the duties of the contract he has agreed on, by signature.
The court decision can only be reversed in favor of Lucy, if only Zehmer has deceived Lucy by making him sign the contract without proper information about the contract. Or if Zehmer has failed to perform his own obligation in the contract agreement.