You have limited time to complete the transaction before the sale.

Is there a housing shortage or is there really a problem with the BARRIERS caused by productivity, land use, zoning and mandates that limits construction?  

Does it need enough work that it will not pass a conventional mortgage appraisal, thereby limiting yourself to cash buyers?

Quote from @Stuart Udis: The natural buyer of the entry level SF homes have limited cash and therefore the biggest obstacle they face is funds to close.

Or is it limited to 1 property per individual/LLC per year? 

I have used ALE successfully but 4X rent is not what we got we got 2X there is a limit in the insurance polices as to what the insurance will pay but its a decent move at least it was for us

4) If yes to #3, then may I have the link for such a information from a Limited Partner (investor) perspective?

We just discovered a crack in the concrete slab foundation that is a borderline major problem:- It is a vertical crack about 1/8 inch wide that is at least 9ft long, which is causing a 3/4 inch drop in the flooring and some evidence of old (luckily) limited moisture and termite intrusion. - BUT, it also appears old and probably a symptom of the original house settling.

That will leave you with limited funds to actually purchase the house.

The only way that works is if they have fully connected utilities and it is sitting on some kind of foundation and not on a trailer.Some folks think they are cool, but you really limit yourself on demographics.