Agreed to sell a couple my kitchen cabinets for $1,500. In March, they gave me a $600 down payment with an agreement that I would keep them in my garage until they paid the balance. After many, many telephone calls and responses of many excuses (husband had surgery, waiting for vacation check, not enough money yet), I am now wondering if I can sell these cabinets to someone else. (In March, I turned away approximately 7 potential buyers after I received the downpayment.) Am I obligated to return the downpayment according to PENNSYLVANIA law?