So, there are lots of challenges involving earning lots of money (Rosebud challenge, etc.) but I propose one that's the exact opposite of this! The rules are pretty simple: -Start out with 1000000...
Sorry I keep adding stuff. I've decided that you don't have to meet your founder's spouse; you can bring them in from CAS/the gallery. If you do, they must also have Fabulously Wealthy and Materialistic. NPC spouses can keep their original traits/aspirations.