Structuring partnership w/loan and title in partners name

[Frankie Woods]

I partnered with a friend of mine last year on a primary residence. He used his VA loan which required zero down, and I provided him with cash. The loan and title are currently in his name, and we signed a contract (non-notorized) to be 50-50 partners. Does anyone have experience with this type of deal. What is the best way to protect myself in this situation. I do not feel that is likely that things will sour in the future, but I don't have a crystal ball. Please help!