I don't know the exact criteria, but with 99% probability you should not just visit places where Betty is cleaning, but communicate with her by clicking on her figure and making critical remarks to her. At least that's how I got through this quest.
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After finishing the dialog with her in the game interface on the left side will appear a pop-up hint that "Betty went to another room". Accordingly, look for where Betty has moved to and talk to her again. And so on until everything is finished.
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Betty cleans in many locations, including the kitchen and the guest bedroom. The options for completing the dialog can vary from simply completing the dialog to punishing Betty with additional carpet cleaning. I suggest trying all of them, including the latter).
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For Julia's quest from ep3 v16, see FAQ (1.4.25). I heard about Victoria for the first time, as far as I remember there are no special requirements for her quests, but if the game tells you that it's better to finish all her
bachelorette parties quests before dealing with Biff, well, do it.)