$10-5.$ Liability for Contracts. Thomas Huskin and his wife entered into a contract to have their home remodeled by House Medic Handyman Service. Todd Hall signed the contract as an authorized representative of House Medic. It turned out that House Medic was a fictitious name for Hall Hauling, Ltd$.$ The contract did not indicate this, however, and Hall did not inform the Huskins about Hall Hauling. When a contract dispute arose, the Huskins sued Todd Hall personally for breach of contract. Can Hall be held personally responsible? Why or why not?