have all contributed to it.

The arrangement was we would bring him deals and in return he would pay us a portion of the deal (depending on our contributions beyond bringing in the lead). 

You can make additional contributions to your retirement account too depending on what the limitations are to accelerate when you have enough for your next purchase? 

I do feel I am contributing something to our community by allowing second chances, but I do so with eyes open and extra security deposit to cover my risk. 

In exchange for his contributions, we will split the cashflow 60/40 or some agreed upon division proportionate to the expense, to be determined.This, I believe, could be a solid plan. 

I've got a lot of reading and learning to do....but I'm thankful for the resource and hope that I too can contribute in the near future.As I work on plan I am interested in another SFR or a vacation rental in my area.

But I feel I have benefited not only from reading, but also contributing. 

To avoid appearing like you want to be spoon fed, do some things that will show that you are willing to make a personal contribution to your learning by doing the things that are easy to do on your own. 

Your brother will still live in the basement even though it says on the document, that he lives on the first floor and never contributed a dime.The guy who lives in basement for 20 years without paying a dime knows about this document, went nuts and yelled "When my mother dies, I'm entitled to HALF this house, not one fourth".  

You are a team and everyone will contribute differently based on their time.