The value of your "property" isn't really based on its physical characteristics, location, upgrades, etc....it's based on its cash flow stream: I don't want your building, I want its cash flow.

Mary your confusing a construction lock box with a dial code or number punch code with a  RMLS board of realtors electronic lock box to vastly different things.. and if a seller is ok with an agent putting a contractor box on the home and allowing the agent to give the code out that's up to the seller.However in NO circumstances may an agent give their electronic key code physically to ANYONE other than a licensed assistant that is in the system.

How will you handle any capital expenditures if they present themselves like replacing an appliance or physical repair like a roof, etc?

He either pays rent at the end of the month or the month after its due.He refuses to pay by any normal method and will only pay if someone physically collects it from him.

Some things can be searched online but most searches are physically done at County Hall of records or Mnicipal records etc...

FHA and VA backed loans absolutely do have certain physical requirements called MINIMUM PROPERTY STANDARDS. 

There are horror stories all over amazon from people who has their Nest brick due to forced firmware updates (yep, once you install it there's no way to not have it automatically update, so think about how often your iOS updates leave things working strangely for a few months), which can leave you with your heat/AC running full blast until someone physically goes to the property to shut off the breaker.

I have purchased a home previously as primary residence and I remember that much of it required physical presence at the bank.For what it's worth, I don't foresee any trouble with loan approval.

You go from the day job (computing and phone ) to the physical labor or floor sanding and prep.

A second observation would be to think in terms of" adding value" to properties through physical and Stabilzation improvements.