It looks like there is more interest in buying the former post office on King Street in Bridgewater. Mayor Carroll Publicover wouldn't say much, but confirmed it's a different potential buyer than the one in negotiations from March to May. Publicover is optimistic a deal can get done.Publicover wouldn't reveal who is behind the sale, saying he would keep his source confidential. The 109-year-old post office has been for sale since 2010.