If they damage your property here, you're SOL!

(Damage, but no injuries fortunately.) 

Those are the hardest to notice because they dont cause any damage and drain normally.

If you can befriend and connect with them you can "borrow/steal" their resources such as reputable contractors, agents etc.

While I am still having significant responsiveness issues, the quality of the listing and this new PM’s understanding of market rates is significantly better than my previous PM.I’ll note that during this time, there had been 2 hurricanes in surrounding markets (fortunately no damage to my property from either) that likely contributed to some of this vacancy.

And more photos taken, same photos, and extra photos of any damage.

I cannot sell because there was a break in and a lot of damage.

Best practices for security deposit deductions (damages)?

The other option is a water supply line, but that would typically resulting a steady leak and the damage would occur faster.Really think about what is above that space that could cause the issue.

It appears you are able to hold her responsible to cover damages and lost rent.