Original Commentary

I don't know where they come up with the money either. I think the old one is living off a pension. The younger one(s), we have no idea. I had figured that she gave them a discount on rent, either because she wanted to look out for them, or if they moved out they might break up the set - Terrence

Modern Commentary
You know the real reason why Lola doesn't kick them out?

Even if they lived somewhere else, they'd all still travel across town to hang out in this apartment's lounge. - Terrence