Its appeal as a desirable coastal city helps maintain rental demand.Fort Walton Beach: Located in the Panhandle, Fort Walton Beach and its surrounding areas offer a mix of steady rental demand and affordability, providing good cash flow opportunities, especially for single-family rentals.Pensacola: This city offers relatively high rental yields due to its affordable property prices and stable rental demand, making it a solid choice for cash flow-focused investments.These areas balance stable cash flow with potential for modest appreciation.

Also features that are desirable in duplex would be a separate heating system which allows the duplex part to adjust its heating and air conditioning to whatever the renter wants.

Back then, prices were much better, and turnkey marketers could make a decent fee.As prices increased, many turnkey providers had to move to less desirable areas (I know people are always looking blame other people but in reality blame it on yourself for being the investors that picked bad areas and did not do due-diligence and buy assets where the numbers worked with 10-20% economic vacancy), and now that gap has essentially disappeared.

So they are often not desirable for a primary residence or even a long term rental. 

Some good answers here so far but one I haven't seen yet is desirability.

You can learn from the sponsor on the deals and then go out on your own if you desire or later decide you are happy to keep investing and not put in the work yourself.

No thanks they say, visit us where we live, but we have no desire to visit the city. 

If you don't have a firm commitment, how will you handle a less desirable loan?

I do not really have the desire to buy more unless there is a really good deal that comes along.Some people tell me that if I pay off my mortgage early then I will be able to leverage the tax benefit of owning and paying mortgages properties.

I have a limited view to the 3-4 markets in which I invest, but I don't see any long term rentals in desirable locations that cash flow year 1.