The principle concept of a CU is commonality - - same employer, same City, same affiliation.  

I'm not affiliated with them in any way.

lol, I sound like an advertisement but my only affiliation is as a customer (with 59 units in 45 months)

They act as an affiliate middle man and pay you a percentage of your total purchase back.

Another tool that I wish I knew existed was RepairPricer (I'm not affiliated, but I do use and value their services).

By rule, we have further conditioned this exemption as follows:A bond or other evidence of indebtedness secured by a mortgage, deed of trust or agreement of sale, involves an "investment contract other than the bond or other evidence of indebtedness" within the meaning of RCW 21.20.320 (5)(c) if any of the following services are offered or included by an issuer or its affiliates:(1) Guarantying the note or contract against loss at any time; or(2) Guarantying that payments of principal or interest will be paid; or(3) Assuming any payments necessary to protect the security of the note or contract, excluding necessary advances for taxes and insurance; or(4) Guarantying a specific yield or return on the note or contract; or(5) Paying any interest or premium for a period prior to actual purchase and delivery of the note or contract; or(6) Paying any money other than that collected from the borrower after the note or contract falls into arrears; or(7) Repurchasing the note or contract, provided that, this is not intended to prohibit good faith repurchases as an effort to assist the investor as long as the representation is not made at the time of sale and not as a part of the sales program; or(8) Promising the investor a market for the resale of the mortgage paper securities.See WAC460-44A-075.

An extremely successful residential realtor in our market developed his entire business from people at his church and another from his son's little league affiliation. 

Do you have any affiliation (ownerdhip) or are paid for advertising these posts?

Here's a few of mine: mortgage notes, rental properties, private lending, affiliate marketing fees. 

There are numerous forms on this link that pertain to CA:https://journal.firsttuesday.u...Select one that meet's your investor needs..I have no affiliation with this company..Good luck..