I am an owner of a wedding photography business and I am inquiring about a wedding contract issue. Our contract states that a 50% non-refundable down payment is required to secure a wedding date. A client is wanting to cancel her booking and she wants to get her payment back. We told her at our initial meeting that the deposit is non-refundable, and we went over the contract with the client, she filled out her information on the contract and gave us the deposit, but she forgot to sign it. I need advice on the validity of the contract, and I am inquiring to find out if legal representation is needed in this case.