Check off the sale of another new high-end house developed on speculation in Palm Beach. The sale also testifies to the demand for lakeside properties, especially those with deepwater docks, which have become increasingly scarce of late in the island's grab-and-go real estate market. In the latest of those deals, developer and builder Malasky Homes has sold, for a reported $19.25 million, a just-completed Bermuda-style house on a lakefront property at 1280 N. Lake Way, about midway between the Palm Beach Country Club and the north tip of the island. The elevation of the half-acre property a...