I've been trying to do this challenge, it seems to be a very long one but it sounds really exceting! After a couple of bad attempts I finally had everything going on fine. Problem is the sims that started, the townies, went to elder status when the heir was a child, and afraid what would happen if they both died the founder asked a sim to move in, he just happened to be there at the lot, but now that he is part of the household I realized he doesn't have any traits, none! What can I do?
The other thing is the thombstone, now the parents of the heir both died, it looks like a box what was left behind when they died, but when I placed it in the inventory it looks flat, if I place it back on the floor it's squared, is it ok or should my heir find someone else to move in with him?