I'm fairly certain there was a bathtub broken under switches, then I gave myself the bathtub repair guIde under items, then I let a day go by and made another save in the next slot, and under switches again, checkmarked Leslie Adv Dialogue. That popped her out of the bathtub and made her stand next to the tub. I could not do anything at that time, but in the next time stage I was able to fix the bathtub and continue on with the scene next day.
Edit: I can't recall if I was able to make the bath tub repair item or not, I may have had to put that in my inventory too, can't recall.
If you can't even get the quest started I'd recommend just doing the bathtub broken and see if the quest works from there.