If your home is older or may be close to being due for mechanical, electrical, plumbing, appliance, or other potential policy covered upgrades, using home warranty insurance products can also help offset some of the costs for certain unexpected failures.

My next step is going to the management of this place and stating my concern over the outsourced maintenance they have and also requesting new appliances

Carpets and appliances will all fall into the same category and at the end of the day expenses will be significantly less than older properties.But there has to be a catch right?

The cabinets are painted second hand cabinets from FB marketplace, flooring is under $.60/sf, appliances are new-ish but used.

That is indeed considered an "appliance" i.e. 1245 property and eligible for bonus and S179.Oil tank might be part of the HVAC subsystem and thus part of the building if the oil is used for a heating furnace and if the tank is connected to the furnace/building. 

Also if I did go for top dollar flip do you think I would get a higher ARV going with a more modern look on the interior (White with stainless steel appliances brush nickel hardware, White bathroom tile etc.)   

Also if I did go for top dollar flip do you think I would get a higher ARV going with a more modern look on the interior (White with stainless steel appliances brush nickel hardware, White bathroom tile etc.)   

When you visit these stores you get the material costs for items as well as the installation costs on many things like flooring, countertops, cabinets, water heaters, appliances, tile, lighting, toilets etc.

We have redone the kitchen counters, cabinets, blackspalsh, added cabinets and stainless steel appliances.

The 4plex is newly remodeled and in a decent area, but with the age of the building and size of the units, top-of-the-line appliances don't really make sense.