Interestingly enough, if you are on the romance path with Jolina, you can cut Bella out totally. If you're committed to Jolina, (Monogamy) she does not add Bella as a resident, plus you can agree with her to try to get pregnant. It SEEMS like the best path forward, but with another chapter to go, there could still be some nefarious dealing with any of them before the game ends.
I wasn't observant enough in my first couple of playthroughs to catch what Bella was up to, so I came upon the Jolina option using 20/20 hindsight.
You could still make the decision to cut Monica/Katie/Jenna out of your life for your own share, but with getting Elaine's share, Bella's share, and the 5 million to Jolina if she gets pregnant, there's really no point in that.