Looking for a vacation for family of 11 in Luquillo area

Hi! I would like to arrange a whole family vacation next February in the Luquillo area (we are not wedded to that specific area if there are other suggestions, say on the west coast, but we do not want to be based in San Juan). Family = six adults (three couples) and five children, ages 4-9. I am open to one large house, though my preference would be two smaller ones, so that we grandparents might have a place to ourselves, while the sibs and cousins are in their own place--or even two smaller places. I know I can go to the usual websites (VRBO etc.) but wondered if folks here have any specific ideas. If it matters, several of us speak Spanish with varying degrees of competency!