Buyer cancels contract under false pretense

Licensed real estate broker contacted my broker to purchase our house for cash, wanting to do no inspections other than the UST scan. He wanted a two week closing. Contract was signed. He was one of 3 buyers we had. Time comes for the UST scan and he asks to postpone the scan from a Friday to a Wednesday. In meantime he misses Monday date for larger deposit. SWe have cleared house of all furniture and done fire inspection-required at cost to us.On Wednesday his scan company claims to find a UST under the driveway. We know this is false because we have our own report plus the house went from coal heat to gas heat, never any oil. When approached about whether the scanner went to right address--never even looked in the basement--he cancelled the contract under the pretense of a tank never even asking for "cure." Do we have any legal recourse?