The disadvantage is that you are prohibited from advertising and can only take investors with which you have a substantial pre-existing relationship.

Pre existing gas lines and electric outlets decide the location of the stove and fridge unless the guy paying the bill wants to pay to have them moved.Hell no I don’t cook I’m busy running a business.

You have a substantive pre-existing relationship with investors (meaning you understand the ability of your investor to invest.) 2.

Why did you buy the house then with such an ugly PREEXISTING eyesore?

Several lots I'm interested in do not have "new build" comps, only pre-existing. 

With 506(b), you must have a substantive, pre-existing relationship with all LPs.

However, coming from "outside the MLS" there are no pre-existing terms.For a "one off" listing, its not that bad for an agent to represent you. 

An ATM fund is a fund that purchases ATMs (Automated Teller Machines) and places them in large retail facilities across the country from preexisting contracts. 

These is an exception with pre-existing relationships with investors.

Plumber  (pre-leak) who had replaced washer shutoff didn't replace adjacent pre-existing low quality connector which cracked (source of leak); this low quality connector wasn't his work so I think I'm on my own to deal with the expense.