House Hack Financing strategy for multi-family in Boston

[Jeffrey Allen]

I am in the process of creating my financing plan.  I look to house hack in the Cambridge, Somerville, Newton area as it fits best with my family's working and schooling needs.  Anything multi-family in this area immediately gets me into a jumbo loan situation.  From what I have seen so far, any loan would require 20-25% down payment.  While I can personally finance that, it would leave me pretty cash strapped for at least a year.  

I am wondering, what have others done to get jumbo loan financing without having to put down 20%+ of a down payment?