Washing machine drain: Water should readily drain into washing machine drain without any back-ups.Utility room: should be free of debris, motor vehicle parts, and flammable materials.Kitchen --Stove: should be clean and free of food and grease.Refrigerator: should be clean.

The best advise is do something that works FOR YOU.There are many vehicles in REI. i’m currently house hacking here and flipping.

Most folks on here would probably advise you to sell and put your money in a better investment vehicle where you’re not “gambling” on appreciation and rent increases while losing money in the meantime.

It's not much of an issue during the day since our tenants work but the extra vehicles and weekends are problems. 

I have a Tesla and I think it would be good to leave the home charger connected for any future electric vehicle tenants as well. 

I own all my vehicles, no credit debt and minimize bills by paying in advance etc.

Some of the things I would like to do, move my vehicles or any future vehicles over to the LLC and "lease" them to employees (me and wife), buy material goods such as ipads or other systems for the purpose of enhancing the AirBnB, paying for websites, marketing or other business operations.

If you are seeking the market cap rate so you can determine the value of your property post-stabilization or considering a sale, I would reach out to several appraisers for their precise numbers and opinions. 

Typically,for convenience I would keep a set of entry keys for any vacant units in my vehicle at all times, along with a set of Master Keys.

You answered precisely.