It’s worked for meIf you got 25% skin in the game plus cash flow,  and some manage experience.

Note that I do not put a lot of time into due diligence until the "contract to hold" meeting, when they put some skin in the game.At the "contract to hold" meeting, I collect an amount equal to one month's rent.

----------------------And this is how the upper middle class march toward death at the end of their lives in America, the lucky ones, the ones who, when they're healthy and younger, "have choices to do with their time whatever they feel is most important and having more than enough money to do that."

It is his only asset and his health is not great.

First it gives the buyer a little skin in the game. 

With that said, you could essentially continue to buy an unlimited amount of properties, so long as you're strategic about which properties you want to buy (they need to be cash-flowing positive) and so long as you can provide a healthy down payment. 

The DP is their security that you are going to pay since you'd have "skin in the game" and would have something to lose in the event of them having to foreclose.

Also assume they will want you to have 'skin in the game'  - which your 100K partner will easily cover.

There are healthy ways to help family while helping yourselves. 

I am not sure how they will see you using "Investors money" on the front side, I self finance my deals with lines of credit,  that outside money may look risky to many lenders as they want to see you having skin in the game.