Buying Abroad, With a Logo

After 16 years of hauling suitcases to the Four Seasons Resort Nevis, Ivan and Ann Highley-Gergel of Philadelphia no longer need to pack for vacations at the Caribbean island resort. About a year ago, the Highley-Gergels paid around $3.5 million for a furnished, four-bedroom villa that comes with a pool and a cottage and is…