Need Advise-- Multi Family Financing

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I'm looking to purchase a 30+ multi family to add to my portfolio. However, I need to find a way to put low money down on a loan. I currently own a duplex and using the brrrr method- I'm still in the process of rehabbing it. I've been talking to a few personal lenders, but they're quote is the same of what my local bank is quoting me. Should I consider partnering up with someone at this point for additional financing? Thanks for your responses