The answer was simply to clean out the tank and remove some roots that had grown in.I did call the city when the house was empty to get them to run a line to get "regular" sewer services (there's a big push in my county to move from septic tanks to helping folks tie into city sewer lines). 

I will say, if you really think the root problem is her, I'd offer cash for keys and get her out quickly.   

What is the root cause of their lateness?

I've arranged for my PM to take a smaller percentage since I'm still the one handling bookings, doing small maintenance and keeping up with supply inventory.A better example is the service I get from my housekeeper at my new rental in Tennessee: she does the post-stay walk-through, cleans, and provides or maintains the inventory of supplies (she provides quite a bit: trash bags, toilet paper, basic toiletries, dishwashing soap, hand soap; the things I provide, she'll let me know when supplies are low, and I'll have new items shipped to her house).  

I have a duplex here in Omaha that appears to have some root growth in the sewage piping, which is causing a reoccuring clogging issue. 

do what u love.. indeed continuing education and living in a state of grace are paramount over numbers, net worth, etc in these times where material wealth/power are covertly at the root of much dismay world over

@Tawny Bloom - the pipe clogging issue is a result of soap and oil chemically mixing and sticking to your pipes.  

(Dragging out soap box)Peter,I'm sure these are fantastic resources and I always encourage my clients to gain as much knowledge as they can, but the biggest issue I see is NOT getting the correct answer to your question.  

I get it they were with the company 20-30 years, but now have kids and grandkids and roots in the area, and did not want to leave. 

Maybe this is the true root of my frustration.