The only time I want a mega mansion is when my in-laws or parents come to visit. I fantasize how it’d be nice to put my guests in a separate wing with their own kitchen, bathroom, and living area. This way, we can all keep our independence while also sharing family time every day. Alas, my family only lives in a 1,920 square foot, three bedroom, two bathroom house. We downsized from a 2,300 square...