If there is an environment created that can be construed as a hostile relationship, in most cases you will be the one who loses.

Are BOTH the condenser and evaporator being cleaned often enough based on local environment?

Communicate, treat everyone with respect, and provide ample time.

I sell real estate to STR investors in a beach market, and one of the main strategies I tell them about (and that I also use myself) is to have a new 4-point inspection and a new wind mitigation report done periodically and to reshop insurance with a few BROKERS.In Florida, these inspections are only good for 1 and 5 years, respectively, so you MUST get new ones--especially if you have had a new roof, added hurricane clips to an existing roof, or replaced your wiring, HVAC, water heater, etc.Also in FL, insurance companies come and go, so there is no need to stick with the same one and just take it when they try to bend you over and raise your rates. 

His story, if true, indicates the tenants have no respect for the property owner, his rights, or his desires.If I were a betting man, I would bet money that they are dragging their feet because their rent is well below market.

There are often unexpected expenses, and you want to make sure you have enough cushion to get through those surprises.Given the current low inventory environment, I would say securing a good deal is challenging (though not impossible) in general.

Florida is a fantastic choice with its favorable tax environment, lower cost of living, and diverse markets.

I'm thinking of cash-on-cash ROI here in the long term (I'm in a medium-appreciation environment which helps).

With respect to what you get back, I'll echo other replies here and state that it is dependent on a lot of factors including your marital status, other income, etc. which determine your tax rate. 

Having launched over 200 funds, I respectfully disagree, from an investor perspective,  the key thing to look for in a fund of funds model is deals where you are getting the same or better terms than if you go directly with the sponsor.