Also, some mobile home parks and rv parks have some tiny homes in them.

There are plenty of inexpensive homes within a 20-30 minute drive of Hershey (Hershey Park, Chocolate World, Concerts) and Harrisburg (State Capital). 

It means doing local maintenance in case a cord is damaged, but simplifies things for the tenants with reserved parking spots.

Purchase price: $750,000 Currently operating as a 9 unit mobile home park with single family home

It would definitely be much easier (and probably about the same on total cost) to just cashout refi what funds you might need from you STRs and then park then cash in MMAs or 30 day treasuries until you need them.

You could rent a room in a big house owned by a little old lady or in a rooming house.When my son was looking for an off-campus apartment, we were fortunate to find him a room in a rooming house in Hyde Park.

Definitely that was money making time in terms of operations and appreciation as well.Things have changed now, there is so many STRs now that people are renting for 100-150 USD a night which is like a motel price.Now it may make sense from the perspective of, if Poconos is where you travel a lot with family or you are buying full cash to park the money, or tax strategy or various other personal reasons could be there where it might make sense to invest there.But coming in from the perspective of an investor who are new or have little experience and are trying to build wealth from not too heavy asset portfolio.

Should I future proof it and just go 400 amp service and add an EV port outside where the MTR will park as well?

Im Curtis i would like to fortify by buyers list in Portland Oregon and Nationally.

Very few agents unless they are one of the National Self Storage firms will understand Self Storage, although it is very similar to large MFH.