Your return could be a percentage of the proceeds of a sale instead of charging interests, points, etc.Best of luck!

It's easier than investing and helps my financial picture at roughly the same percentage. 

I want to offer my hustle, because my equity would be a small percentage!

Some Lenders will base the loan on a percentage of ARV and some will look at the as is value at the closing. 

Other than the MLS, where can I find the percentage of houses lived in by owners vs renters in a given neighborhood?

If this is possible, is this something that could actually become somewhat of a business (i.e. charge a % of any positive returns for the time/effort I would put in to this - especially seeing as how there would be ongoing legal costs) and if so what is a reasonable % (remembering that this is with friends/family so that percentage would mostly be to build a side fund in case of costs)?

They will charge likely a few “points” percentage points as a fee, and then interested in the loan which could be due monthly or at the end.

He said he wanted to be involved in the decision making at which point I said more for him was fair in my opinion.His proposal: Each party initially owns whatever percentage of the money they initially invested.

@Brian OsonWhether you use traditional or a hard money lender they want to know you have at least the percentage you would be bringing to the table... it’s the “don’t waste my time” test.  

Then for Deal #2 you can decide if you feel comfy DIY or not.Most REIs (I don't have a percentage) that I talk to started out this way.