Further background: my home (constructed in the early 1900s) had an oil fill pipe that apparently used to go to a tank in the basement.

They should be able to clean out a holding tank easily enough clearing tampons, pads, plastic wrappers etc.

There may be ways to adjust water in the back of the tank or even just a different toilet that can flow more water.

Recessed lighting, brand name mini-split system with 4 zones and tanked water heaterOnly upgrades are vaulted ceiling in common area, solid core doors, Decora light switches with dimmers, 50 gal water heater (vs. 40 gal) and lighting in closets.This price was locked in at peak lumber prices and the majority of lumber was ordered on day one to protect from further increases and supply issues.         

No natural gas lines in the area, so we would need to stay with electric or bring in a propane tank.  

Tamper  resistant outlets, GFI breakers, new furnace roof vent codes, water heater expansion tanks, water hammer arrestors, HVAC duct blast test, gas line pressure tests.  

You are local and not an 'out of state investor shark', this is to your advantage.

Some companies also write coverage under a commercial form (Business Owners or Package policy).Things you want to discuss with the agent:- what policy form is best for your situation- What coverage will be quoted (be wary of Actual Cash Value and Basic Form)- What are the optional coverage (sewer backup, equipt breakdown, water/sewer line coverage,...) choices and are they right for your situation- What Deductible to use (Higher the deductible the lower the premium) Some things to be wary of (as they limit the insurance companies that will write the property or raise the cost)- Underground tanks (active or inactive)- Knob & Tube or Aluminum wiring- Tenants with dogs that are on the restricted lists (ie. pitbulls, ...)- Roofs over 20 years old- Plumbing, Heating, or Electrical that has not been updated- Fuses- Flat Roofs- Asbestos sidingAre just a few examples.

I want the shark agent who is hungry and will scour every last home for me, and will meet me at any property, any time...

If it was in a hot hot area then maybe but then if things tanked you’d be in trouble.