I assume you mean luxury homes and not one where somebody died. With that said, try Tahoe Luxury Homes, they have Tahoe and occasionally Reno homes. They are fairly rare, try the bulletin boards at Caughlin Ranch and Arrowcreek, I saw one this morning on the Arrowcreek bulletin board. I will ask Ruth at our rental office if she has anything like estate homes; 775-688-4800, you can call her also. Perhaps start calling the luxury homes that are vacant on mls if you have access to that 411.
It would probably be cheaper to buy one with the cheap interest rates though.