For most of their existence Fannie and Freddie were privatized.  

Because of this the supply is relatively low which means the ones that do exist tend to make good money, especially if you theme it toward bachelor/bachelorette parties.

The quaility of old existing units, and the ability of the long term population to pay new rents, blended with an influx of small high end mill conversion units is simply not balanced.

Positive SolutionsProblem: In my county small multi-family houses are nearly non-existent and short-term rentals and second-cooking-areas are illegal.Solution: House-hack while renting MTR to traveling medical professionalsProblem: I didn’t know the many laws of the countySolution: A hired attorney 1) informed me that the county calls a house-hack a boardinghouse and 2) drafted a very comprehensive agreement that includes answers to your list of questions.Problem: Interpersonal problems can be a risk.

So you're going to have to do some research on the existing towns you're looking at to see where it's allowed and where it's not allowed.

., through short-term flips, leveraging existing assets (my 17 properties), and potentially engaging in mixed-use developments—the model ensures that there’s sufficient cash flow to meet investor obligations and fund community programs.Gradual Affordability:Driving down rental prices is a long-term goal.

My best piece of advice is to buy a house with an existing permit.

Is this home in the beach a new construction or an existing home?  

Do they come through and try to justify their existence by pointing out small things for you to fix or is it pretty benign and they're just making sure you're not a slumlord?

Not sure what the returns are on a 6 bedroom for rents are but those would be your numbers.As far as new construction versus existing, I'm not seeing the gaps that big in any size range.