I spoke with one guy that seemed very professional and respectable that offered to take a serious on-site look through my project and advise me for $500, prior to potentially putting together a plan and coming on as a general contractor. 

I really want to come across professional when i send out the letters.

I've seen examples of professionally written "Finder's/Referral Fee" contracts for real estate, and have heard of cases where these have been successful, but haven't been able to get in touch with anyone personally who has experience in this area so far.

Hello everyone,I recent acquired a fourplex in fort worth area and hired a professional property management firm to manage my property.

Im about to get my professional engineering license so i understand why real estate looks better than engineering.

Consult with your tax professional (CPA, HR Block, etc.) for the exact definition of these and what you should do. 

Please advise from a passive investor perspective looking to invest around USD 25 to 30k who is non accredited. 1)Public REITS2)Private non-traded eREITS (example Fundrise, RealtyMogul etc.)3)Owning residential rental property4)Passive partnerships investing in Mortgage Notes.5)Investing in publicly trading riskier asset classes (example High Yield bond, Leveraged Product, Inverse ETFs etc..)

I personally would probably prefer to invest in a note fund instead if individual notes but you have to be accredited for that.

We just last year made the transition to a professional financial advisor who acts as our CFO.

As always, seek professional advice.