Douglas Elliman’s Kyle Rosko is sitting on a couple of gems — but nobody seems to notice how precious. Rosko’s pair of listings in the highly desirable Amagansett Lanes are a 10,000-square-foot home on two-thirds of an acre at 109 Hand Lane and a 4,500-square-foot home on just three-tenths of an acre at 27 Meetinghouse Lane.  The properties’ Hamptons-standard amenities, such as their gunite pools, “spa-inspired” bathrooms and name-brand appliance packages, make them as desirable as the next East End mansion, but they both share one key, albeit less sexy, trait: their size-to-lot ratio.  The duo are part of the […]

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