The home was in rough shape—think mold, a hole in the roof, and years of water damage.

I read that as meaning that a $100,000 property can have $15,000 of deferred maintenance as long as its not immediate roof work, outdated wiring, mold or water issues.  

City water with one main at the street and how will they bill. 

In Reno and metro areas, insurance companies primarily focus on roofs, the age of the building, wiring updates, and water pipes, as mentioned @Cameron Moore.

The house has a new roof, but HVAC and water heater replacement might be needed in the next few years.Also, mortgage rates are currently around 7%.

.* Day 4: Maintenance responds to my pest control request by spraying a $30 bottle of Walmart roach spray around the house like I couldn't and didn't do that already. * Day 5: I find a live roach on my windowsill the next morning.Currently: One bathroom is taped shut and not working.

Usually this is from poor drainage and accumulation of the water that tends to be absorbed by the soild near the foundation.

Last year we had a water leak on a Friday night, we had somebody out immediately Friday night and came back on Saturday to do final clean up. 

Or if you are able to connect to public water &  sewer, this would make the investment much easier.

Try to anticipate other potential avoidable situations with a follow up inspection to assess the Locksmith’s work and ask your tenant(s) if you can also use the time to assess for other issues such as unchanged HVAC filters, leaky pipes, working shutoff valves, working smoke detector batteries, properly working downspouts, clogged dryer vents, evidence of water damage from leaking roof, etc,etc,etc.