Lending a friend money for a rehab

[Dan Birdsong]

Hi Everyone, newbie question here. Im lending a friend money for a rehab on a home that he is about to sell. I trust him 100% and he is giving me a good rate of return on my money. My question is, and I tend to always think of worst case scenarios. But am I liable for any lawsuits on the home he is going to sell? Like lets say he spent the money on a bad contractor and the roof fell on someone. I know it sounds silly but I just want to make sure im free and clear and that my loan for the purposes of rehab on the home isnt holding me liable for anything? Ive been given a promissory note.

Thanks