right now due to the various COVID ordinances,  unless they are committing acts that constitute a health or safety hazard I don't think there is anything you can do.   

It sounds like keeping her or evicting her is a moot point right now because you currently have a health hazard, i.e. a house flooded with sewage. 

My lease agreement makes the tenant responsible for all consumables, including light bulbs, smoke detector batteries, air and water filters, etc.if your lease does not specifically make the tenant responsible, then it is a landlord responsibility.

Would appreciate any feedback on the health of the Miami condo market these days.

Both lead and asbestos are known health hazards.

Some solutions , a back up generator will keep the pump running , a battery back up system will help if the pump fails , but they are only good to run so long .

My spouse has little interest in retiring early, so I'll ride their health insurance to the grave.

Death , divorce, jail, health issues in the middle of the deal?  

We can change little things like using steel studs and cementatious materials...we can tighten up the openings and insulate better.....but we have been doing that for a few decades and they now tell us that these hermetically sealed buildings are not good for our health. 

The easiest way to determine the health/strength of any investment property is to look at the numbers.