What @James Wise said.Plus, 60 amps, that might be old 110V service and those old fabric covered wires.The flickering and surging might be the OLDEN DAYS fabric wires arcing inside the walls (a fire on it's way to starting).Even if the outlets have 3 prong holes and you see some ROMEX, it doesn't mean they redid the whole system with ROMEX, there will be hidden from view junction boxes that might still have old wire in them, or old plastered over live wires.Fix it quick--flickering and surging is not a good thing--it's very dangerous.You may be forced by law to bring it up to current code, GFCI Breakers, etc... ($$$$)And make sure the smoke detectors are up (not expired) and working properly.I shudder to think how you will feel if someone burns to death in there.

My instinct is telling me I'm doing things wrong: that third party sites offer neither unique data, nor fresh data, and that I'm wasting my time browsing them.

I wouldn't waste money on lawyers until you know it's serious and she will need to be evicted.     

You hire and PAY those professionals because they have expertise you do not and it's not worth your time to learn to do it yourself.So, why would you waste your time learning how to be a property manager and not just hire an expert to handle it?

I cant help but think of the Wolf of wall st.. and stratton Oakmont LOL.. great movie.

Benefits of post framing include but are not limited to: more efficient use of lumber, thicker wall cavities, large roof spans and quick to dry-in.

There was a huge tree growing out of the foundation that ultimately required taking down two of the four foundation walls and the first and second floor walls and roof along with those foundation walls. 

I think it would probably be a waste of time for a guy who buys in my market segment.

Let alone cleanouts and raccoon crap and holes in the walls where they get in and out. 

I did question the hours and he did say the hours included on site and off site hours needed to pick up the materials also waste needed to hauled away and disposed of.