There are two large community pools, which are heated during the cooler months, tennis and pickle ball courts.The minimum STR period has been reduced from a year to six months.

Windows would be my next check-point (less than R1) and then wall insulation: I would not be surprised if they have no insulation inside, but you can do blow-in, which only requires a small hole.A home looses heat in two ways: heat conduction (which you can slow down with insulation) and drafts, which in old houses is usually the biggest culprit.

This is the simplest method, but it also means your tenants are more likely to abuse the utilities by leaving windows open with the heat or A/C running, leaving lights on, ignoring the toilet that constantly flushes on its own, etc.3.

We heat and keep the doors closed and don't have issues normally.

Estimated cost for remaining changes (all new electric, drywall, tile, fixtures, cabinets, roof, doors, windows, heat pump, some siding, and fencing.

@Alecia Loveless is correct--tenants need access 24/7 to their electric service panel, water and heat, assuming those are individual utilities for each unit. 

Let Title put the heat on the seller to remit through them.

Heating costs and interest rates dont help the numbers but demand is high and resale numbers have been impressive

Upgrades include a fully remodeled kitchen, renovated bathrooms, new durable flooring, contemporary fixtures, and efficient heating and cooling systems.

@Nathan Harden- agree about OH ....I went to school at Miami U and lived in columbus area for a few yrs  ...many friends that still live there ......I live in Seattle proper ( near  Magnusson Park ...also  own  2  properties in Mason County ......father in law lives on  close to 10 acres close to downtwon Medina so we will be dealing with  figuring out the  best thing to do with this  as he gets  older ( he is  83 now) ...stay in touch