How do I structure this deal?

[Brandon Tahincioglu]

Hello BP members I am hopping someone can give me some advice. I was approached with an opportunity involving a Fix and Flip on an SFR. The fix and flipper is asking for 25K from me for the purpose of purchasing the property and paying for the rehab. The Flipper would then sell it and repay me. I know the guy does a good job and am familiar with his work. What would be fair compensation for me lending the 25k. Thank you for any advice.