I am sort of tired of "I am a good tenant because I pay on time" so do an "X" for me right away; basically treating a landlord as a room service. 

Also - is it appropriate to add a contingency related to this in an offer - specifically something like "earnest money will be returned if property soil is not found suitable to support 15 RV pads" sort of thing? 

All sorts of liens can be placed on title. 

Due to Peter's methods, we have made contact with tons of motivated sellers.

But can the contract/note/agreement have some sort of clauses to  protect the seller stating that Property can no be resell on contract while in subto or something like that?

Good deals (great deals) are WORKED - negotiated, bartered, set up creatively, and necessitate understanding the opposite parties motivations, desires, needs, pressures, etc.

Your journey of 23 doors in 29 Years of age is really motivating. 

I would definitely go back and look at when you purchased the stove to see if it came with any sort of warranty that could replace this at no cost to you. 

Those that “don’t see” the benefit to a party likely are unable to comprehend that their own perceptions, history, experience, and motivations are not “universal” in scope.  

I do not know of any firm that would allow for a 50% commission reduction just because the buyer did not want any sort of representation.