Kristen Weslowski’s late mother had a vision when she purchased the “quintessential old farmhouse” at 1842 Pork St. near Skaneateles in 2000. “She saw it for her future grandchildren,” Weslowski said.

Listed at $87 million, a mansion and guesthouse at 1160 S. Ocean Blvd. were completely rebuilt on an ocean-to-lake site in ...