Here're a few articles that should give you additional guidelines as to what to look into:https://www.biggerpockets.com/member-blogs/10850/76728-questions-to-ask-a-syndicatorhttps://www.biggerpockets.com/member-blogs/10850/86626-the-pros-and-cons-of-investing-via-real-estate-syndicationhttps://www.biggerpockets.com/member-blogs/10850/79257-deciphering-syndication-investment-terminology

Just saying, I can beat bushes walking and talking faster than snail mail or trying to decipher inquiries. :) 

You can get similar postal maps of zip codes, and decipher the mailing areas.

Also, some of the area is located in Flood Zones and I'm trying to decipher FEMA's flood zone maps but having trouble deciphering the various zones.   

@Owen ThorntonI am trying to decipher this as well.

Your comment is hard to decipher).

For Seattle the rules were clear and easy to decipher. 

You're also right that general real estate information is more or less public, but deciphering what the numbers mean and, moreover, understanding true conditions on the ground is where you find the real value.

If that's the case, then $275K is the right number, regardless of the actual cost.The problem here is that the OP is telling us two completely different things, and without knowing what the actual agreement was between him and his partners, there's no way to decipher whether he did the right thing or the wrong thing here.

What you are saying is factually wrong.You are trying to decipher marketing trends using the wrong data, the wrong understanding of the data, and the wrong data handling.