If you don't want to help ppl, than your on a wrong job.

great idea...i should be more specific on the terms with what i plan to rent to see what can be worked out by the lender

Permitting costs can be reduced for facilities with multiple buildings ongoing as they can negotiate discounts and use a third party to permit that is certified by the state.Now, you do need to transport the home, but here distance is a factor, sure if you are going to ship 100's of miles this can add up but in general there is a service area for delivery at nominal cost.Those designs over 1 story will cost more as you need to rent a crane but that is another area you can manage cost.In the end I am pushing back against a blanket statement that "modulars cost as much and are built to poor quality" because frankly that is wrong.

Check with your county it is so specific for property taxation. 

I have a house hooked up like this and I honestly can't say if iits wrong but we haven't had issues.

Also through the MLS you can get things like median & average rents for specific areas plus DOM stats although I'm unsure about price to rent ratios.

If putting 40% makes you feel secure and you can afford it, there is nothing wrong with that. 

Much appreciated.We are seeking a tax professional who can help us locally, as well as, be available virtually with specific investing questions and guidance.

Specifically, knowing what size of property you can afford, then narrow down on Airbnb/VRBO to the similar properties and see what the properties with the highest nightly rate or the highest review/ratings look like and what amenities they offer.

You'll want to be specific about what type of property you are looking for and(after you do some research and maybe even visit) where you want to invest.