You can sue your real estate agent for negligence. Negligence is the failure to exercise due care (that degree of care that a reasonable real estate agent would have exercised under the same or similar circumstances to prevent foreseeable harm).Your damages (monetary compensation you are seeking in your lawsuit) are the cost of the appliances and their installation. You can file your lawsuit in small claims court. Since the agent has disappeared, you can have a process server do a skip trace to locate and serve the agent with your lawsuit.Upon prevailing in the case, you can also recover court costs which include the court filing fee and process server fee.