So, we now find most areas where the cost of PM leaves but the general real estate passive investment ROI for the investor hiring property management.  

But in general, your biggest risks are not necessarily what's the maximum rent you can get, but can you find a reliable tenant that will always pay and pay on-time.

Lots of generalizations in there.

I own 20 acres of land valued at approximately $80,000, and I want to build two short-term rental (STR) units on it.For context, my family already owns two long-term rental (LTR) units in the same general area.

Lau, generally if you are financing with a commercial lender- we lend for business purpose only and a rental property would fall under that category.

In general, government will set the assessed value lower than market value at reassessment in order to neutralize appeals.

Appreciation and value add opportunities are also a factor though generally they don't change my offer.

If you just hire the cheapest or first PMC you speak with and it turns into a bad experience, please don’t assume ALL PMC’s are bad and start trashing PMC’s in general.

AND just because you have experience and a “good deal” doesn’t mean you will be successful trying to syndicate the deal.The first criteria is does the sponsor have the general knowledge and experience in real estate, and the specific knowledge and experience in the property type/location to give the project the best shot at success?  

It is pricey and a little hard to make the numbers in my experience, but it is a vast area (S FL in general) so I am sure there are pockets where it makes sense.