It was listed as an environmental hazard on form 17 (seller disclosures).

I'm wondering if anyone has advice on different elements of such a venture (did read good article from Mike Lacava from 2014), but wondering how best to size the build for my area, best type of lending to go after, other things to watch for in such a venture. 

. #2 - I am not an environmental expert or an attorney, but this one may be of concern.

This is way out of my element, as I am typically a value add investor. 

For Sewer Scope I often use Root Excavation or Alpha Environmental and have had good results with each of them. http://www.rootexcavation.net/ https://alphaenvironmental.net/Hope that helps! 

Then when you bring in other elements, like Anonymity--that can be like a moat or a dense line of trees keeping the invaders away from your assets.

It is being fully understood that except as specifically set forth herein, Grantor has made no warranties, express or implied pertaining to said property, the condition thereof including but not limited to, matters relating to environmental conditions or hazards on the property"Then later on its says " We are the sole owners of the premises and have good right and title to convey the same in manner aforesaid, and that they are free from every encumbrance, except as aforesaid and WE hereby Warrant and Defend the same against all lawful claims....."

on your first post, regarding the MH that is a tear-down, probably indicatesthat it's septic may be needing major work or replacement up to new codes,may be just as costly or perhaps more than new, with environmental disposalissues, etc.

Check the new construction by KB Homes (Element) 2000 Sq.

I am an environmental engineer who designs water and wastewater systems..