How are you compensating your investors?

Hi Everyone,

I recently began my search and have come across some great prospects which I want to move forward on. Only issue - I can't put up the full down payment for some of the ones I like. Now, luckily, I do have some close family friends who are willing to invest with me on my next venture, but Im trying to figure out how to compensate them for it accordingly.

My question is -

How much equity are you offering to investors based on their capital investment? Is it 1:1?
What is the payback structure regarding them recouping their investment?

Thank you all for your assistance!