I don't know if this helps you or not, but when I moved in where I am now, I was up front about my tanks, the landlord sort of demanded that IF I carried renters insurance that would cover any damage to the 9 unit building that that would be fine for her, I am insured to around $300,000 to cover a replacement building it is cheep, this only costs about $250 yearly in my area, maybe this would give anyone that has these living conditions another tool to work with the management on this kind of problem.
If it helps I had a fire with water damage to 7 of 9 units and the repair bill for this was rather expensive, in the 50k range for repairs to the brick front wood structure, mostly drying out the drywall and wood in all wet areas, and repair to the many holes in the building to dry it out. We were lucky that there was another building with enough vacancies to accommodate the people displaced for the 3 weeks we were drying out and repairing the units. Hopefully you can appreciate the fact that it is very expensive to dry out a building before it gets moldy, the price to repair a moldy building is almost the total value of the structure.
herb