We moved a few times as necessary for mom to afford the basic necessities.

Research implied easement, easement by necessity, easement by prior use, easement by prescriptive or adverse use, and easement by estoppel to see if any of those apply to your situation.

I boiled a pot of hot water because I need to cook and hot water is a necessity in the kitchen.

Pointing out that regressive taxes on necessities hardly qualifies as some form of personal choice is economic analysis, not emotion. 

.)- Fun/non-necessities (tickets for events, dining out, etc.)Have you found a good system for this? 

You will have everything you need for you home at the beach, full kitchen with all necessities. https://www.bovr-spi.com/sea-la-vie-202-orp5b58003x What made you interested in investing in this type of deal?

This investment is intended to be low risk assets (so like Joel noted) primary retail corridor in high demand areas, with a necessity focus and national, credit tenants on leases.  

There is another rental in town that is renting a set $600 per room, furnished with necessities (beds, dressers, sofas, and appliances...) utilities included and laundries.

@Dan LieffortUpgrading to an HVAC/ Central Air isn't a necessity, but renters want them.Window units are extremely inefficient and cost a ton to run the majority of the time.In my multis I get more money per unit 100% of the time.As far as cost goes I would just get a couple of GC's/ AC guys and go with who you trust to do the work, has competitive pricing, etc. and keep your tenets happy.I can refer you to people if you need.

I came across BiggerPockets, by researching the necessities of flipping houses.