Hey @Josue Ramos here are a couple relevant charts on the areas you mentioned.

Beautiful weather, outdoor activities, and a vibrant culture add an extra layer of appeal for both residents and investors.But Florida isn't a one-size-fits-all market.

It costs the same amount to replace a roof or furnace whether the house is worth $300k or $30k (assuming a similar size).

Quote from @Sherry McQuage: Make sure to check the zoning to make sure mobile homes are permitted there; check for any hazardous waste designation for the area; will you need to have the parcels surveyed out in order to sell the size you intend? 

One size does not fit all and I wouldn't take much stock in any advice stating that housing assistance tenants are better or worse as a whole. 

That size and price are within range.

I was aware of the egress requirement, but was not considering the door size or ceiling heights.

People I know that owned similar sized houses around me were regularly getting 1.75-2.25X what my house was renting for.

Given the size of the asset, these won't be huge, but something to consider.REWARD - In addition to the benefits stated above, the only other reason I could see doing one on an asset this size is if you wanted to offset a property sale that would have a large capital gains. 

If not, they may consider building the ADU and down-sizing into it and renting out the main house.