In HI there are leasehold properties, cesspools, water catchment, and Lava Zones (on the Big Island). 

But your main killers; road access, water access, fire hydrants, flood plain, storm sewers, Storm ponds, road surface requirements, etc. 

The important things to consider about HOA fees is that they usually include some utilities: Water/Sewer, Trash, sometimes shared amenities like gym, clubhouse, pool, and they are saving you the time and headache for property maintenance: lawn care, tree timing, roof, siding, etc.

The cons as i see it include loosing the 2 of 5 year cap gain exception, typically not an ideal rental because the emphasis at purchase was buying a good home for your family and not a rental with optimal return (my ex-home consistently has the lowest cash flow for equity in my RE portfolio), not disconnected enough from the property causes addition angst on damage and may result in over improvement.  

The problem is the waters are muddied when a negative occurs with the investment that is in no way the result of dishonesty or incompetence; it’s merely the revealing of the probability of an outcome that has been properly disclosed as a possibility - yet the unsophisticated investor begins crying Ponzi scheme, theft, incompetence and every other accusation they can think of rather than considering the possibility that they made an investor with higher risk than a money market fund. 

The grout between the tiles allows a run off of water and a gripping surface for your feet.3. if you’re smart, use durock on the walls too, right up to the ceiling.

If, any bad tenant could be evicted in a few days and held responsible for the damage they caused.

As a lender I can tell you that argument holds no water.  

And as investors we should know this, but always anticipate higher costs and longer waits.EXAMPLE Breakdown of Costs:Plan Purchase: $1,500Permitting Fees: $2,500-7,500Site Preparation (grading, utilities, foundation): $20,000–$30,000ADUs require separate utility connections for water, electricity, and sewer but you can tap into existing utilities at the primary houseIn Raleigh you CANNOT split lots fee simple, so setting up completely separate utilities would not allow you to section off the ADU as of nowYour ADU must be on a permanent foundation (no wheels, no ability to move the structure)Construction (labor and materials): $100,000–$150,000Low-grade: $150–$180/sq ft averageMid-grade: $180–$220/sq ft averageHigh-end: $220–$250/sq ft averageLandscaping/Finishing Touches: $5,000Total Estimated Cost: $125,000–$200,000You could easily spend $200k+ with super end high finishes, custom designs, complicated sitework, adding a second story or more sqft, etc.

We have had a lot construction work recently and all of the people doing the work are Hispanic, don't speak English, due to hurricane damage.