My First Value-add Multi-family Syndication Deal

What's the best way to structure your LLC?

I have 6 equity investors, whom I'm all friends with, bringing in 25% of the 1.5 million, which comes to $375k. The rest will be bank financed. First 2 or 3 years will be a ramp up stage with little or no cash flow. I'm not investing any of my own money. Do I offer Preferred Returns? Do I eventually try to pay off the original investments and take back the equity? Is it too greedy to take an acquisition fee of 1% ? Asset Management fee? 

I want everyone to win, so any advice is much appreciated! 

Thanks