Grand villas are comfortable for 12 guests. More than that would be wall to wall people Some of the newer
DVC resorts have gas burners in the kitchens and tables for 10, plus seating at the bar off of the kitchen. They are smaller kitchens but not as small as at the BWVs. I am not sure how that would work. Would all of your family be staying at the same resort? And how many would come to the party at the Grand villa? The reason I ask those questions is that parking could be an issue, if you have lots of guests. Catering might work better although there are restriction on using an open flame heating of the trays due to fire hazards. I would contact DVC Member Satisfaction and ask this question and add questions about guests coming to the resort if that is appropriate.