I'm concerned in looking at my portfolio if I should be in more widely spread areas or go heavier into where I already am...

I'm a bit concerned about the purchase piece of the agreement because he wants to buy the property at the end of the 5yrs for $375,000.

My concern is that the purchase price is what I would call "low market" for the Portland-Metropolitan area, which is smoking hot right now and prices are way up. 

However, Reg D compliance actually protects the issuer as it is a safe harbor, the issuer utilizing a non safe harbor private placement exemption subjects his offering to interpretation by security regulatory agencies.All this is of little concern to the passive participant as long as he obtains full disclosureWhat is of more concern is the licensing, if any, needed to broker, manage, and service notes.Purchase of existing notes, whether residentential or commercial requires no license.

When you enter mobile home park land, your major concern is with the barriers of entry to SFHs and apartments.  

I would be more concerned with what a tenant needs than the appraiser.

I assumed it was an installation cost concern, but just wanted to double check.

I do have some concern about the state of the US economy and trouble ahead which could require something like a foreclosure, but I think the company would be loyal to their clients as we go through something such as that.

Cash flow is what you need to be concerned with. 

I would only be concerned with the lower estimate if they demand payment up front.