@Kobe Carr I am in no way an expert but I could definitely schedule some time to walk through them quickly.

If they are the one providing most of the cash, they might not want to carry that liability, but you've already negotiated with your partners on this and then the bank isn't cool with it, you could be in a pickle.

This is the “over night” success that’s taken 20 years.2 - Superior uncommon knowledge, combined with experience and capital and a willingness to take a risk (speculate).  

It's a riskier loan given you do not carry a social security, no US credit & no experience.Due to increased risk comes mitigation (Lower LTV & Higher Rates)

With any investment there are risks, but how much control you have to mitigate risk is what makes the income snowball a low risk strategy.

What is your risk tolerance, and are you ok with properties that need work, or do you want turn key?

Do you mind sharing the name of that type of loan/lender that allows you to have the seller carry on a second position?

No syndication experience but there are about a dozen quality RV/Mobile home parks on market in Oregon, several with owner carry options that can be passiv-ish with management in place.

On the other hand, if these are in terrible areas, you introduce a different kind of risk. 

This is a significant risk to the other two parties that are bringing the deal and the money when they could just as easily hire a contractor and keep the equity for themselves.