The Legacy Challenge Rules

8cf4815c925a9d6e​  If your sim visits a rich sim's house, you should see a notification that your sim has learned the other sim is rich.  You can also check the value of their house by entering it in Build or Buy mode.  If you don't want to switch the active household, bring up the cheats console (ctrl-shift-C), enter testingcheatsenabled true , shift-click the ground of the other lot, and choose to buy or build there.  You don't need to make any changes; just check the Furnished value in the upper-left corner.

Or you could cheat away the money after the fact.

But more importantly, legacies are supposed to be fun like everything else.  So if you're stressing about this, just do whatever you want that you feel is in line with the way you're trying to play.  No one is going to judge your choices except for you.

Since this thread is very old, I'll lock it here.  Feel free to create a new thread to discuss your legacy or ask questions or get advice on about how to proceed though.