Just off US 441 and Boynton Beach Boulevard, in a spot guarded by cottonmouth snakes and alligators, are eight Native American mounds belonging to a group that became known as the Belle Glade culture.

But retirees who bought homes in the 1980s now are at or over age 90, and some are unable to play golf. Other homeowners who bought decades ago have died and a spouse still may live in the home ...