The owners became so exhausted by her endless difficulties, we offered to let her out of the lease - she turned that into we were "evicting her", which was not the case at all.

The umbrella starts when the limits of the underlying policy are exhausted for a covered claim. 

It is possible the tenant failed to run an exhaust fan in the bathroom (or there isn't one which you would want to address).

Typically this is 1'-5' above the BFE listed in the FEMA Flood Hazard Map, depending on the local code.If the building is designed to meet freeboard requirements, the next requirement is typically that the building be engineered to adequately withstand the anticipated loads placed on the structure during a flood event.

Those are exhaustive lists.  

A multi-member LLC is taxed like a partnership anyway by default.the business structure is an exhausting discussion. 

One kitchen exhaust vent was blocked, but no major problems.I have asked my agent to get more information.

Do you select any tenant base that can withstand hyperinflation?

The above list is not exhaustive, but serves as a reasonable starting point from which you can evaluate lenders.

Many financial experts talk about the 4% rule: you can withdraw 4% of your capital every year without exhausting your portfolio.