If you had bigger cabins only, definitely not.One thing I would add though is that your returns are somewhat based on your purchase price which you can control. 

Rent would be ~1,400 to 1,800 / month which is above market rate but housing is in very high demand and price is in line with what seniors who live on their own would be willing to pay based on my conversations with local Real Estate Agents. 

I will say though, based on every point you've tried to make before this your credibility and ability to tell if a PM is good or not is incredibly questionable.

Based on your numbers, this seems to be a Section 8 duplex, is that correct?

They make their living from this work and deal with more hassle than you can imagine, based on what I know from some of my realtor friends.

Further Evaluation (Professional based)Comment 2: Yard wetComment 23/24/25/26/27: Electrical WorkComment 4/5/6/7/40: Glass repairs/sealedComment 28/29/30: Hvac repairsComment 49: Chimney inspected/cleanedRepair (Handyman based)Comment 3: Vegetation removalComment 12: Leaking hose bibComment 13: Sewer cap replacedComment 19: Door knob replacedComment 22: Replace all batteries in smoke detectorsComment 38: Replace clamp in sinkComment 39: Replace dishwasherComment 41/48: Dry wall prepareComment 44/47: Door repairHave you decided on a property manager yet?

We sold a $330k rental property with almost no base so we need to do an 1031 exchange of roughly $300k to offset capital gain.

Beyond that, terminate the tenancy based on your lease (you should have a clause in there that permits eviction for this kind of behavior).

My specialty is working with investors and business owners in locating island based cash flowing rentals and or non rental second homes. 

Based on your question and your expectations, stay in index funds.