Finding an Investor/Partner for my First Deal

Hello, 

This is my very first post. After months of searching and learning, I have finally come across a great multi-family rental unit deal. I am in the process of completing my commercial loan paperwork, and my question is: Where do I find investors for the down payment if friends and family are not an option? Ideally looking for a 50/50 partner where I manage and they source the upfront funds. Any info you can share will be very helpful, thank you! (In the meantime, I have been searching the forums for this info as well and haven't quite found it just yet.)