E-mail us preferably as we are not allow to self promote. 

John Beck was a guru back in the early 70s who did a lot of small time (self promoted ) stuff with tax liens/deeds, particularly in California.  

I know that bigger pockets kind of promotes rentredi.

I also believe, but cannot yet prove that Spark has earned remuneration for putting together the group of investors in that if they are buying a $50,000 share from a promoter they remit some amount less than that and receive the full share giving them a "share" of the LLC they created to hold everyone's funds.

Note investing is something that gets promoted a lot.

Invest in Real Assets: Use the money in your self-directed account to invest into real estate or other tangible assets such as gold and silverThere are some rules to follow, like avoiding prohibited transactions and ensuring that your assets are held by the custodian.

I see the same with note investors and people writing books and doing coursesI can name many people who now sell courses in a different strategy (whatever is hot) because they just bounce around promoting a lifestyle “live your life and earn $25k/mo passively with (insert investing type).

This is tough.Depends on how fuzzy you want the business/family line to be.The only thing I'd be absolutely sure of is that your money has more tangible security than being a "personal loan" EVEN IF you cut him a break on cost. 

Real estate is tangible, unlike all of the other comparative metrics you talked about.

Most leases are for 6 months only and they do run promotions like first month free rent.- I got used washer/dryer from them.