We are investigating a new business model and wanted to know if anyone is already doing this and if they would reach out to share their experience.The model is as follows: Buy land, clear it, add well, septic and a foundation or pad.

The one person that really makes or brakes your business is your property manager.

And since HOA dues ALWAYS go up (usually annually), I'd put the brakes on this one.

Has anyone considered or tried putting an extra layer of underlayment under luxury vinyl tile - even if it already has a thin pad attached? 

Basically, pad your escrow account in year one to soften the inevitable blow in year two. 

Where do I buy loose yellow paper, I can't find it anywhere, all I find is the writing pads.

After wood has been sistered or replaced, install the columns on a concrete pad, then every week twist up just a bit. 

Use other services too,  Craigslist, Trulia, Pads, Whatever. 

High financing estimate because I like to pad things - $110,000 @ 8%= $807Taxes ($1500/12)=$125Insurance ($1000/12)=$8310% Vacancy=$14010% Repairs/maintenance=$140Rental income ($1400) minus expenses ($1295) = $105 positive flowIs this too good to be true?

No job and reduced cash flow tells me to put on brakes until you figure out how to earn more money.