Haunted Mansion Upgrades in Crime City

I have the two Haunted Mansions and the upgrades are still free. I got them both to level 3 in no time, but it will be a couple of days before I get them to level 5. After that, I’m not sure if I should keep alternating the upgrades or simply push ahead and get one upgraded all the way to 10. The big money is $40k at level 10, but that’s gonna take some time.

And ironically, I bought the Beach Nightclub, but haven’t done a damn thing with it since I’m constantly upgrading the Mansions.

Time will tell…