First timer doing a hard loan, need help with Lender agreement

[Tito Taiwo]

I have agreed to lend a friend who does fix and flips some cash for a property, with an agreement for a 10% ROI (I am lending 10k since this is my first time doing business with him, however I do trust him.) I was sent an Investor Agreement document to sign. Seems like a generic contract with our agreement stated on the bottom. Since I am new to this and this is my first time doing this, wanted to know if there is any clauses I should make sure is included in the agreement or any clause to watch out for. OR Maybe someone can share an agreement with me that is in favor of the Lender. Thankyou.