what makes a second home a luxury? What if my parents died and I inherit their house while I own one? Do I lose one, or have a grace period to sell one? What i

what makes a second home a luxury? What if my parents died and I inherit their house while I own one? Do I lose one, or have a grace period to sell one? What if I own a family farm and want to build a new modern house on some of the property? Do I need to demolish the old one, sell it, be homeless to build a new one?