How to protect the two interests in a flipping partnership?

[Ben Bakhshi]

We own a property and instead of investing money into repairs we want to partner with someone to manage & fund the rehab, and share in the profit.

We are moving forward with someone already, but I am not sure what is the best way to protect all parties ownership. Is there a simple legal agreement we should use, do both parties need to be on title? What is recommended in this situation?