It's all enticing... you are thinking "they have what I want to know"... which is true... but so does every other investor who already has experience if you balance out the opinions you receive. 

Promote the fact that they are energy saving to the tenant. 

They do not promote or advertise, simply word of mouth and you do your own promoting to steer guest to book on the site.

At the risk of self promotion...

Not trying to crap on the place but you are definitely barking up the wrong tree(s) trying to entice investors and developers for this place.If the upside is $475K the place is barely worth $329K to me if I have to do much more than sweep it.Where in god's name is there margin for a developer?  

Keeping your cards close promotes long term relationships with these guys even if it costs you $500.As for REI Coach's comments, any transaction has its risks, and a proper understanding of those risks and how to avoid them is paramount.

Nearly the entire focus was on recruiting and getting rich from your "downline".Every person I've talked with who signed on takes on the aire of a cult promoter. 

I believe a better circumstance for the buyer would be to have an option to "buy" another 5 or 7 or 10 years of balloon extension for some enticing payment of principal (say, 5% or 10% of the outstanding principal or of the original purchase price) or, and far less ideal but that may prove to save your client's butt, some hopefully lesser amount of a payment that doesn't get applied to principal but that buys a good extension.

Set up a payment schedule and have enough at the end of the job to entice them to keep showing up.

It looks like Deal Machine is promoting AI capabilities.