Hi Gabriel, glad to connect.  

I also have some capital to contribute.Could someone explain how syndications are typically structured, and how are people using Other People's Money (OPM) to build large portfolios with little to no money down?

This project highlights how purchasing from motivated sellers, making strategic renovations, and selling to retail buyers can lead to successful outcomes.

Based on how I am reading your summary it sounds like there is solid equity in the 2-family in order for a bank to cross-collaterize assets. 

When you start raising money, the kinds of investors you're going to get are individuals who want to make a better return than the stock market. 

You need to build your credit.

The cash in and the interest rate are not enough information to make a decision on.

Welcome to BP.

I would strongly consider building equity to make a stronger down payment and further decrease your monthly cost. 

Quote from @Andrew Syrios: Make sure to swing by the MAREI meetup groups.