Since then I have located the area where they entered and sealed it off, however I'm having trouble killing the ones currently living in the attic.

Which made my tracking for taxes and such all look super dumb because everything is off by a dollar.

I would greatly appreciate any guidance or advice starting off with this business model.

If there are none on the market, then look off market. 

An older gentleman from church is selling off his portfolio of SFH/MFH rentals in the Belleville, IL area and offered one to me as he knows I want to get into RE Investing.Purchase price is $50,000  for a 3 bed 1 bath and the current tenant is renting at $800/month.

Never lend in second position unless you have the wherewithal to pay off the first.

Off market and the new the owner used an agent so I reached out to the agent and made an offer How did you finance this deal?

I had belatedly realized that FHA goes off personal credit and therefore I couldn't use the LLC for it.

I have lived in Hawaii for many years but now that I’m a traveling healthcare provider, I am off island more often than not.When I’m not on contract I would love to have a place to return to and when I’m away I would love to rent it out for some additional income.

You're off to a bad start if you must create a poor perception of other options to make your concept look good.